WCFS - Western Center for Food Safety

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eNewsletter, January 2017


 

MEETINGS AND CONFERENCES

 

NAU-UC Davis Graduate Education Conference for One Health 

January 23 - February 23, 2017
Davis, CA

NAU Conference

The 2017 NAU-UC Davis Graduate Education Conference for One Health is underway at UC Davis School of Veterinary Medicine. During the three week conference, sponsored by WIFSS, undergraduate students from NAU will learn about graduate education opportunities, engage in learning experiences involving plant and animal sciences, food safety and One Health, and visit a California dairy, the Veterinary Medical and Teaching Center in Tulare, and have a hands-on experience in water sampling techniques. Joining the undergraduate students, on January 23 and 24, were 19 NAU graduate students. The combined group had the opportunity to spend one day attending informative lectures and touring greenhouse facilities, sponsored by Plant and Environmental Sciences. 

 

 



 

2017 AAFCO Midyear Meeting 

January 15-18, 2017
Mobile, AL

Amanda Arens, Bennie Osburn, Michael Payne, and Heather Johnson from WIFSS attended the Association of American Feed Control Officials midyear meeting in Mobile, Alabama, in mid-January. Arens led the team in presenting the new on-line “Animal Classification” course recently completed by the curriculum development department at WIFSS. The presentation was made during the education and training committee meeting. This course was developed as part of an FDA funded project and is available immediately, at no cost, to states or others who would like to use it. While at the AAFCO meeting, Arens, Osburn, Payne and Johnson also participated in discussions on the further development of training materials that would help states meet the new training standards set forth by FDA. 

 

 





 

 

OUTREACH

 

FSMA Microbial Water Quality Workshops

Melissa and Jennifer

The Atwill Laboratory staff at WCFS would like to announce that they are planning another round of workshops discussing water sampling and environmental assessments in collaboration with our partners in Washington. These workshops will include:

Aseptic Water Sampling
Environmental Assessments
Water Quality Profiles
Testing Methodologies
and more…

They are beginning to meet with cooperative extension agents across the US in order to build agricultural community support for additional workshops like those offered in Washington.

Are you a grower group, irrigation district or agricultural stakeholder interested in learning more about water sampling and FSMA compliance?  Please contact: Ronald F. Bond or Melissa L. Partyka at-atwilllab@gmail.com, for more information or to request a workshop near you!.

 

 

 

 

 

 

 

 

 

 

 

 

RESEARCH

 

2017 FSMA Cooperative Sampling Project

Canal

Staff members in the Atwill Laboratory at WCFS have been gearing up for the 2017 irrigation season by meeting with irrigation districts, growers and producers, and academic collaborators. To date, they have three irrigation districts in California and three in Washington State. They are currently in the next phase of the projects, which is to get grower participation from each district in order to fulfill a top-down cooperative sampling approach to their research. Data sharing is a potentially important part of FSMA and our 2017 research should help growers start that process.

They are always on the lookout for additional collaborators at either the district or the grower level; please email them at atwilllab@gmail.com if you are interested in participating in their research.

 

 

 

 

 

 

 

 

 

 

 

 

 

Salmonella in free-ranging marine reptiles a potential public health risk

Researchers and Sea Turtles

Researchers studying the nesting and foraging populations of sea turtles in the Caribbean have found different Salmonella serovars in free-ranging wildlife.  Information conducted on sea turtles provides a better understanding of the epizootiology of Salmonella in free-ranging marine reptiles and potential public health risks associated with human interactions with these animals in the Caribbean. 

UC Davis School of Veterinary Medicine and Western Center for Food Safety researchers Esteban Soto, Michele Jay-Russell and Elizabeth Antaki joined scientists from Ross University, Louisiana State University, and Mississippi State University, published their work in Zoonoses and Public Health. This work was supported by the Ross University School of Veterinary Medicine Center for Conservation Medicine and Ecosystem Health.

Photo by Leonardo King 2015 shows SKSTMN-In-Water team working up juveniles. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PUBLICATIONS

 

A.-K. Ives, E. Antaki, K. Stewart, S. Francis, M. T. Jay-Russell, F. Sithole, M. T. Kearney, M. J. Griffin, E. Soto.  2016. Detection of Salmonella enterica Serovar Montevideo and Newport in Free-ranging Sea Turtles and Beach Sand in the Caribbean and Persistence in Sand and Seawater Microcosms. Zoonoses and Public Health DOI: 10.1111/zph.12324

From the summary: “The main objective of this project was to estimate the prevalence of non-typhoidal Salmonella enterica in the nesting and foraging populations of sea turtles on St. Kitts and in sand from known nesting beaches. Results suggest a higher prevalence of Salmonella in nesting leatherback sea turtles compared with foraging green and hawksbill sea turtles….  To determine the persistence of representative strains of each serotype/genotype in these environments, laboratory-controlled microcosm studies were performed in water and sand (dry and wet) incubated at 25 or 35°C. Isolates persisted for at least 32 days in most microcosms, although there were significant decreases in culturable bacteria in several microcosms, with the greatest reduction in dry sand incubated at 35°C. “ The complete summary is available here.

 



 


eNewsletter, December 2016


Happy Holidays 2016



 

 

MEETINGS AND CONFERENCES

 

Conference of Research Workers in Animal Disease 

December 4, 2016
Chicago, IL

Alda Pires

Alda Pires presented a poster at the 97th Conference of Research Workers in Animal Disease  (CRWAD), co-authored by Michele Jay-Russell, entitled “The use of biological soil amendments of animal origin in organic agriculture and food safety risks.”  The objective of the study is to assess current practices used by the organic industry related to manure and compost use to identify potential food safety risks related to microbial contamination and potential threats to the public health. A nationwide survey was conducted, focused on the use of animal-based soil amendments (BSAs) and food safety risks in organic farms. Findings from the survey will provide a framework for microbial risk mitigation strategies for raw manure used in organic and sustainable agriculture. You can see the poster here.

This work was supported by a planning grant from the USDA National Institute of Food and Agriculture (NIFA) Organic Research and Extension Initiative (OREI). 

 

 



 

WSTFA Annual Meeting and Horticultural Expo 

December 5-7, 2016
Wenatchee, WA

Melissa Partyka and Ronald Bond attended the Washington State Tree Fruit Association Annual Meeting and Horticultural Expo held in Wenatchee, Washington, December 5-7. Melissa was invited to give a talk on the first steps growers must take to begin water sampling entitled “Agricultural Water Testing Under FSMA: Where to start” as part of the food safety session proctored by Ines Hanrahan of the Washington Tree Fruit Research Commission. Melissa also participated in two panel discussions; the first, which focused on issues of water sampling compliance, included Justin Harter, Manager of the Naches Selah Irrigation District, Trent Fuller, HR Director for Legacy Fruit Packers LLC, and Marc Verhougstreate, Asst. Prof at University of Arizona. The second panel, entitled “The Year Ahead: More Fun to Come”, allowed Melissa to talk about some of the research being conducted by WIFSS and the Western Center currently, and research that is being proposed for the coming years. That panel also included Northwest Horticultural Council Vice President Kate Woods, Jacqui Gordon, the Director of Education at WSTFA, Claudia Coles from the WSDA Food Safety and Consumer Services division. The session was well attended with a mix of growers, packers, regulators, researchers, and irrigators. 

 

Melissa Partyka Presenting
Melissa Partyka Speaking

 

 

UK Science and Innovation Network 

December 7, 2016
UC Davis, WIFSS

UK Science and Innovation Network

Michele Jay-Russell and Bennie Osburn met with Stefania Di Mauro-Nava, Science & Innovation Officer with UK Science and Innovation Network, based at the British Consulate General, San Francisco, and Dora Meredith, Europe and Global Portfolio Manager at Innovate UK, to discuss work on food safety, food security and resource sustainability, and explore potential opportunities for collaboration.

Innovate UK is the United Kingdom’s national innovation funding agency, and currently sponsors programs like the UK’s Agritech Catalyst. During the December 7 meeting Jay-Russell shared innovative research projects currently underway at WCFS. Osburn outlined research and training initiatives at WIFSS that are raising awareness and educating food producers and processors, regulators, and consumers about food safety and food security.  

 



 

 

OUTREACH

 

Liaoning Province

November 28, 2016
UC Davis, WIFSS

Chinese government regulators visited WIFSS to get an update on U.S.regulations for produce food safety and antibiotic use in livestock. The delegates from Liaoning Province are involved in food inspection, testing and quality control and were interested in learning about the mission of the WIFSS and the University of California, Davis to provide healthy food for the people of the United States and the world.

Their chaperones included Maynard Skinner, former Assistant Vice Chancellor and former Mayor of Davis, and Bill Ritter, Program Coordinator for Maynard Skinner and Associates. 

 

 

 

 

 

Liaoning Delegation

 

 

 

 

 

 

New WIFSS Management Course for Food and Animal Related Disasters

November 29, 2016
UC Davis,WIFSS 

WIFSS Management Course Group

Amanda Arens, Program Manager for Outreach and Training at WIFSS, and Holly Powers, Solano County Emergency Services Assistant Manager, were instructors of a pilot course for MGT 448 All Hazards Planning for Animal, Agricultural, and Food Related Disasters Management.  Students attending the course held in late November included representatives from California Office of Emergency Services, California Veterinary Medical Reserve Corps, livestock industry, and WIFSS team members Heather Johnson, Mike Payne, David Goldenberg, Jessica Cadriel and Bennie Osburn.

The management level course which provides the background information needed to lead a multi-agency team of emergency planners for food and/or animal related disasters will be available for delivery in 2017.

 

 

 

 

 

 

 

 

 

 

 

 

 

President, Jiangsu Agro-animal Husbandry Vocational College

November 30, 2016
UC Davis

Jiangsu Delegation

 

President Zhendong He, Jiangsu Agro-animal Husbandry Vocational College, and fellow administrators, Yushu Huang, Aiguo Jin, Fuguo Wang, Haiyan Dong, and Qin Wang, visited UC Davis to further develop training programs for their faculty and students in the area of food safety.  In addition to food safety, they have interests in livestock production, agronomy and post-harvest technology. Following meetings on campus, the group toured the William R. Pritchard Veterinary Medical Teaching Hospital.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Swedish Defense University and Swedish Board of Agriculture

December 12-15, 2016
UC Davis 

Swedish Delegation

Representatives from the Swedish Defense University, the Swedish Board of Agriculture, and the Security Department at the National Veterinary Institute, met with WIFSS personnel in December to discuss training programs for food defense and agroterrorism.  Bennie Osburn, David Goldenberg, Heather Johnson and Michael Payne shared their expertise with the Swedish delegation about programs developed at WIFSS for training first responders about potential effects of an agricultural emergency and the important structure for organizing the recovery from an incident of agroterrorism or food systems disaster. They also discussed unique issues to be considered and addressed when animals are involved in an emergency, such as safe animal handling, animal evacuation, and animal sheltering. WIFSS and the Swedish delegation look forward to future collaboration.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chinese Academy of Agricultural Sciences (CAAS)

December 13, 2016
UC Davis, WIFSS

CAAS Delegation

Researchers and directors from the Chinese Academy of Agricultural Sciences (CAAS) were members of a training delegation to USA on development and management of world class agricultural research centers.  Bennie Osburn, Director for Outreach and Training at WIFSS, talked with the delegation about potential ways collaborative research and training programs could be used to train graduate students at their university.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Good Fruit Grower Spanish Language Website


Ronnie Bond Sampling Water

Ronald Bond, Melissa Partyka and Jennifer Chase were featured in the Good Fruit Grower Magazine Spanish language website-Good Fruit Grower in  Español. It highlighted an article entitled “Muestreo de agua en pasos simples”. Editors for the Good Fruit Grower Magazine chose to translate articles that would serve to inform Spanish speaks on “in-depth articles and current research trends in horticulture.” This article, featuring WCFS staff, helps to clarify water sampling for FSMA compliance, the article was written by Shannon Dininny and is accompanied by photos from TJ Mullinax and were based on interviews held during the agricultural water quality workshops conducted in May through Central Washington State. 

 

 

 

 

 

 

 

 

 

 

 

 

 

In the Media (YouTube)

Melissa Partyka Youtube

Good Fruit Grower Magazine produce a video of Melissa Partyka- “Growers need to develop water safety management plan - 2016 Hort Show” in which she discusses upcoming water quality standards and the aspects of developing water quality profiles and environmental assessments under FSMA. The video was produce by TJ Mullinax of Good Fruit Grower Magazine. 

 

 

 

 

 

 

 

 

 

 

 

 

 

Better Process Control School

February 14-17, 2017
Davis, CA 

The Better Process Control School (BPCS) was established by the Food and Drug Administration (FDA) for operating supervisors of commercial food canning operations. The UC Davis BPCS is offered in conjunction with the Grocery Manufacturers Association and is available both “In-Person” from Feb. 14-17, 2017, and OnlineLinda Harris will present “Microbiology of thermally processed foods,” “Food container Handling”, “Records for product protection” and “Food plant sanitation” at the In-Person BPCS on days 1 and 2. Erin DiCaprio , UC Davis Food Science & Technology, will present “Acidified foods” on Day 1. The agenda for the full 4-day course may be found here.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PUBLICATIONS

 

Kilonzo, C., X. Li, T. Vodoz, C. Xiao, J. A. Chase, M. T. Jay-Russell, E. J. Vivas, and E. R. Atwill. 2017. Quantitative shedding of multiple genotypes of Cryptosporidium and Giardia by deer mice (Peromyscus maniculatus) in a major agricultural region in the California Central Coast. J. Food Protect. Accepted for publication. 


Abstract: Deer mice (Peromyscus maniculatus) are abundant and widely distributed rodent species in North America that occupy diverse habitats including agricultural landscapes. Giardia and Cryptosporidium are common parasites in wildlife, including deer mice, which may play a role in on-farm contamination of produce. An important step in assessing the risk of produce contamination by Cryptosporidium and Giardia shed by deer mice is to determine the prevalence, concentration and genotypes of (oo)cysts in their feces. A total of 63 (30.3 %) and 53 (25.5 %) of 208 deer mice trapped in 12 farms in California Central Coast were positive for Cryptosporidium and Giardia, respectively. Of these mice, 41 (19.7%) contained both parasites. The odds of Cryptosporidium shedding were 2.5 to 5 times higher in mice trapped in autumn months than those in summer or spring. Female mice had a higher prevalence and a two to three-fold higher intensity of shedding of Cryptosporidium and Giardia compared to males. Female adults and female juveniles had the highest rates of environmental loading of Cryptosporidium and Giardia, respectively. We estimate that 20 infected deer mice inhabiting a hectare of typical leafy green produce farm in the study region can load each day approximately 5.3×108 Cryptosporidium and 10.5×108 Giardia, respectively, into the environment. The small-subunit rRNA gene loci from a subset of protozoan isolates were sequenced and compared to existing sequences in the GenBank. Multiple genotypes of Cryptosporidium and Giardia were found and BLAST analyses results suggest that Giardia and the majority of Cryptosporidium genotypes in deer mice circulate within populations of rodent species but a portion of Cryptosporidium isolates possess zoonotic potential. 

 



 


eNewsletter, November 2016


 

MEETINGS AND CONFERENCES

 

Latin Food 2016 

November 9-11, 2016
Cancun, Mexico

Latin Food 2016Linda Harris attended the International Association for Food Protection’s 5th Latin America Symposium on Food Safety and 7th Food Science, Biotechnology and Safety meeting, where she gave a closing lecture on the topic Global Trends in Food Safety. The Mexican Association for Food Protection and the Mexican Association for Food Science jointly organized this meeting, which included over 700 oral and poster presentations and nearly 1000 attendees. The program is available here. The book of abstracts may be downloaded from the website.

 



 

 

Food Safety and Sanitation Workshop 

November 8-9, 2016
Portland, OR

Melissa in PortlandMelissa Partyka and Ronald Bond attended the 36th Annual Food Safety and Sanitation Workshop, organized by Washington State University Extension.  Melissa Partyka gave two advanced workshops on water sampling titled, Agricultural Water Quality Testing Under FSMA: Getting there from here. The annual workshop addresses basic sanitation as well as cutting edge issues related to food sanitation and food safety. The audience was made up of a diversity of professionals from regulatory, academic, and produce production backgrounds.

 



 

 

TRAINING AND OUTREACH

 

Agroterrorism and Food Systems Disaster Training Courses

November 15-16, 2016
Mather, CA

First Responders MeetingFirst responders from across the state of California from San Diego to Sutter counties attended two days of training outlining the potential effects of an agricultural emergency and the important structure for organizing the recovery from an incident of agroterrorism or food systems disaster.

David Goldenberg, a food safety and security training coordinator with the Western Institute for Food Safety and Security (WIFSS) taught the courses held at the California Office of Emergency Services. Goldenberg’s training included active discussions and table top exercises for the Department of Homeland Security courses AWR 154, Principles of National Incident Management Systems (NIMS); AWR 155, Principles of Frontline Response to Agroterrorism and Food System Disasters; and AWR 156, Principles of Planning and Implementing Recovery.

A maximum turnout of 40 participants marked the final delivery of these three courses. The courses are being phased out to make room for two new courses instructing first responders on preparation and planning for successful disaster response teams. AWR 328, All Hazards Preparedness for Animals in Disasters, and MGT 448, All Hazards Planning for Animal, Agricultural, and Food Related Disasters, will discuss unique issues to be considered and addressed when animals are involved in an emergency, such as safe animal handling, animal evacuation, and animal sheltering. 

 

 

 

 

 

 

 

 

 

 

 

 

 

Third Annual UC Davis One Health Symposium

November 5, 2016
UC Davis

Climate Change and Our Food Supply

WIFSS’ Bennie Osburn was a panel member at the third annual One Health symposium on “Collaboration in the Face of a Changing Environment,” held on the UC Davis campus on November 5. Osburn’s presentation on climate change and our food supply emphasized the need for taking a One Health approach to finding solutions to the changing climate and its impact on food safety and security. He described three problems of changing weather, rising temperatures, and increased disasters, and the corresponding actions WIFSS is taking to address these problems. WIFSS is raising awareness internationally by educating students and faculty from universities and vocational colleges. It holds preparedness training to help businesses to continue to operate during crises, and it conducts training for agricultural communities on preparing for, responding to, and recovering from emergencies. 

 

 

 

 

 

 

 

 

 

 

 

 

 

Food and Agricultural Law

November 14, 2016
UC Davis

Climate Change and Our Food Supply

Bennie Osburn was the guest speaker on November 11th in the University of California Davis School of Law fall semester course on Food and Agricultural Law. The course covers the legal and policy framework of laws and regulations of the USDA, FDA and other federal agencies that regulate food and agricultural production and consumer protections. Osburn touched on several food safety topics regarding the produce production system. He also reviewed the history and purpose behind California Senate Bill No. 27 regarding the use of antimicrobial drugs in food animals and the bill’s impact on the California livestock industry and veterinarians. The bill takes effect in January of 2018.

 

 

 

 

 

 

 

 

 

 

 

 

 

Dairy Video Series

November 7-9, 2016
Riverdale, CA


Delaval

It was another successful collaboration between UC Davis, WIFSS, and DeLaval International as Emily Kunz, Cesar Cervantes, and Heather Johnson from WIFSS, and Daniela Bruno and Mario Lopez of DeLaval worked together on another installment of the “Do You Know” video series. This time they were on location at select dairies in the Riverdale community of Fresno County. The early November weather was just right for the video shoot highlighting how to control digital dermatitis on the hoof. View past “Do You Know” videos under the Dairy section on the WIFSS Training and Educational Materials webpage.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Produce Safety Alliance Train the Trainer Course

November 17-18, 2016
Salinas, CA


Food Safety

Linda Harris, Erin DiCaprio (Food Science and Technology Dept.), and Alda Pires attended the Produce Safety Alliance (PSA) course that prepares participants to deliver curriculum modules as trainers in a PSA Grower Training course. The course provides information about Good Agricultural Practices (GAPs), co-management of natural resources and food safety, FSMA Produce Safety Rule requirements, and a review of the seven module PSA Grower Training curriculum. Betsy Bihn, PSA Director along with the Southwest and Northwest PSA Regional Extension Associates Donna Pahl, and Barb Fick, respectively, joined Trevor Suslow to teach the course. More information about this course may be found here.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PUBLICATIONS

 

Partyka, M.L., R.F. Bond, J.A. Chase and E.R. Atwill. 2017. Monitoring bacterial indicators of water quality in a tidally influenced delta: A Sisyphean pursuit. Science of The Total Environment. In press doi: http://dx.doi.org/10.1016/j.scitotenv.2016.10.179

The Sacramento-San Joaquin Delta Estuary (Delta) is the confluence of two major watersheds draining the Western Sierra Nevada mountains into the Central Valley of California, ultimately terminating into San Francisco Bay. We sampled 88 sites once a month for two years (2006–2008) over 87 separate sampling events for a total of 1740 samples. Water samples were analyzed for fecal indicator bacteria (Escherichia coli, enterococci and fecal coliforms), and 53 other physiochemical, land use, and environmental characteristics. The purpose of the study was to create a baseline of microbial water quality in the Delta and to identify various factors (climatic, land use, tidal, etc.) that were associated with elevated concentrations of indicator bacteria. Fecal indicator bacteria generally had weak to modest relationships to environmental conditions; the strength and direction of which varied for each microbial indicator, drainage region, and across seasons. Measured and unmeasured, site-specific effects accounted for large portions of variance in model predictions (ρ = 0.086 to 0.255), indicating that spatial autocorrelation was a major component of water quality outcomes. The effects of tidal cycling and lack of connectivity between waterways and surrounding landscapes likely contributed to the lack of association between local land uses and microbial outcomes, though weak associations may also be indicative of mismatched spatiotemporal scales. The complex nature of this system necessitates continued monitoring and regular updates to statistical models designed to predict microbial water quality.

 



 


eNewsletter, October 2016


 

MEETINGS AND CONFERENCES

 

FDA Foods and Veterinary Medicine Science Research Conference

October 25-26, 2016
Silver Springs, MD

FDA Centers of Excellence Annual Meeting

October 27, 2016
College Park, MD

Each year the FDA hosts a meeting at the Center for Food Safety and Applied Nutrition (CFSAN) for the four FDA Centers of Excellence (COEs): IFSH, JIFSAN, NCNPR and WCFS. This meeting facilitates interactions among the COEs and scientists from CFSAN. Rob, Michele and Linda each presented brief research updates at this year’s COE meeting in College Park. Michele also attended the 6th Annual FDA Foods and Veterinary Medicine Science Research Conference, where she presented a poster entitled Screening and enumerating Salmonella and pathogenic STEC in raw animal manure used as a soil amendment: data collection for risk assessment. Co-authors are Peiman Aminabadi (WCFS UCD), Yuhuan Chen (CFSAN), David Ingram (CFSAN), Kali Kniel (University of Delaware), Thais de Melo Ramos (University of Delaware), Steven Duret (CFSAN), and David Oryang (CFSAN). This research validated a screening and enumeration method to detect and quantify Salmonella and Shiga toxin-producing Escherichia coli (STEC) from poultry and cattle manure samples, respectively. To reduce labor and cost of doing large numbers of samples, a streamlined flow process was developed by using a combination of presence/absence screening followed by most-probable-number determination. The complete abstract is available here.

 



 

 

4th Asia-Pacific International Food Safety Conference and 7th Asian Conference on Food and Nutrition Safety 

October 11-13, 2016
Penang, Malaysia

Linda Harris gave the International Association for Food Protection Keynote Lecture “Low moisture foods:  food safety challenges and opportunities” to 400 attendees at the Asia-Pacific International Food Safety Conference, which is a regional conference that aims to address the latest trends and issues in food safety across the Asia-Pacific region. It is sponsored in part by the IAFP. The program is available here.

 



 

 

RESEARCH

 

Multi-Regional Risk Analysis Of Farm Manure Use and Soil Health 

Alda Pires and Michele Jay-Russell will lead a project to determine the time needed between application of untreated manure and harvest of food crops to minimize risk from pathogens. The project is funded through a USDA Organic Research and Extension Initiative (OREI) grant award of $1,999,848. These studies are needed to develop guidelines and best practices for using manure to supply nutrients while minimizing risks in organic crops. In addition to UC Davis, project collaborators include the University of Minnesota; University of Maine; USDA Agricultural Research Service, Beltsville Agricultural Center; USDA Economic Research Service, Resource and Rural Economics division; Cornell University; and The Organic Center. The USDA grant award is number 2016-51300-25724. Read more here. The position description may be found below.

 



 

 

CPS Awards 10 New Research Grants

Linda Harris received one of 10 research grants awarded by the Center for Produce Safety (CPS). Harris’s grant is entitled Characterization and mitigation of bacteriological risks associated with packing fresh-market citrus. The awards announced on October 18, 2016, are valued at over $2 million. According to CPS, “the awards are for research projects directed at answering critical questions in specific areas of food safety practices for fruits and vegetables; pre-harvest, harvest and post-harvest handling; and food safety and the environment. The objective is to provide the produce industry with practical, translatable research data that can be used at all levels of the supply chain”.

 



 

 

Acidified Foods Manufacturing School 

October 5, 2016
Davis, CA

The Acidified Foods Manufacturing School is offered through North Carolina State University in a combined on-line and in-person format. Segment 1 is offered on-line, and must be taken before Segment 2. Segment 2 was offered in Davis in October, organized by Linda Harris, and had 10 attendees. It will be offered in Davis again in September 2017. More information is available here.

 



 

 

Basic and Advanced HACCP Workshops

October 17-19, 2016
Davis, CA

Linda Harris co-taught the HACCP workshops with Nina Parkinson and Michael Jantschke.
These courses are taught once a year through UC Davis Extension, and designed to meet the requirements of USDA, FDA Seafood, and FDA Juice HACCP regulations, and are applicable to other types of food manufacturing establishments. The courses are accredited by the International HACCP Alliance.

 



 

 

OUTREACH

 

Foot & Mouth Disease Dairy Field Day

October 4, 2016
Tulare, CA

WIFSS and the California Department of Food and Agriculture (CDFA) partnered together on October 4 for FMD Dairy Field Day at the Veterinary Medicine Teaching and Research Center (VMTRC). Attendees came from universities, the dairy industry, and state and federal governments in California and throughout the US.

The event was sponsored by USDA-APHIS and the California Dairy Research Foundation, and hosted by the CDFA, WIFSS, the California Dairy Quality Assurance Program, and Iowa State’s Center for Food Security and Public Health.

Read story and watch video

Mike Payne at FMD Dairy Field Day

 

 

 

 

 

 

 

 

 

 

 

 

 

NAU-UC Davis One Health Symposium

October 10-11, 2016
UC Davis

The semi-annual symposium for the joint Nanjing Agricultural University (NAU) – UC Davis One Health Center for Food Safety and Animal Health was held on the UC Davis campus, October 10-11. The 2-day symposium, hosted by WIFSS, included curriculum development, faculty and graduate student exchanges, and graduate student research projects.

NAU was led by Vice-President Jianjun Dai, and the College of Veterinary Medicine’s Dean, Jiyong Zhou. Joining Dai and Zhou were professors Zhihong Xin, Huochun Yao, Jiarong Xu, Yong Sam Jung, Yingjuan Qian, and Gaowen Yang.

 

John Angelos, Amanda Arens, Heather Johnson, and Bennie Osburn, from the School of Veterinary Medicine-WIFSS, met with Vice President Dai, Dean Zhou and Professor Qian, to discuss curricular development for courses that can serve as part of the developing One Health for Food Safety program.

Bennie Osburn, Chris Brunner, Jenny Chen, Xinbin Chen, and John Angelos, served as coordinators for the symposium.

Read full story: One Health for Food Safety and Animal Health Symposium.

NAU Delegation

 

 

 

 

 

 

 

 

 

 

 

 

 

Delta Flood Safety Fair

October 22, 2016
Isleton, CA

DCP LogoMichael Payne, dairy outreach coordinator with WIFSS, was on-site for the Delta Protection Commission’s Delta Flood Safety Fair, held in Isleton, CA, on October 22. The fair was held in concert with California Flood Preparedness Week. The commission declared a week in October to be the annual Delta Flood Preparedness Week.

WIFSS co-sponsored the fair booth with the School of Veterinary Medicine’s Center for Equine Health.  Payne answered fair goer’s questions about flooding and livestock and equine response and recovery, and distributed brochures on Flooding & Livestock Owners, and Flooding & Equine Owners.

 

 

 

 

 

 

 

 

 

 

 

 

 

IN THE NEWS

 

Nora Sampling Nora Navarro-Gonzalez, postdoc in Michele Jay-Russell’s lab, wrote an article for Atlanta BEST, an online magazine, about utilizing skills she learned in UCD’s FUTURE program (Frontiers of University Training to Unlock the Research Enterprise) while attending the IAFP Annual Meeting this summer. FUTURE is funded by a BEST award (Broadening Experiences in Scientific Training, a program of NIH), and is intended to empower graduate students and postdoctoral fellows to better develop their own career paths. The article, entitled What the FUTURE Taught Me, was published in the summer issue and may be found here.

 



 

 

POSITION AVAILABLE

 

Postdoctoral Scholar Position in Food Safety and Organic Agriculture

The Department of Population and Health and Reproduction at the University of California, Davis seeks one post-doctoral researcher to work in the laboratory of Alda Pires to conduct research on the role of farm manure use in the dissemination of foodborne pathogens (Salmonella, shiga toxin-producing E. coli, and Listeria monocytogenes) in organic fresh produce and soil health. The project is a Multi-regional project in collaboration with the Western Center Food Safety, University of Minnesota, University of Maine, Cornell University, USDA-ARS, USDA-ERS, The Organic Center and private produce/livestock industry collaborators. Interested candidates should send their application including a letter stating qualifications and career goals, curriculum vitae, and contact information for three professional references to Alda Pires (apires@ucdavis.edu). Applications will be reviewed and considered upon receipt, and will continue to be accepted through January 5, 2017. For more details go here (position AJL ID# 818127).

 



 

 

PUBLICATION

 

Harris, L. J. 2016. Garlic: Safe methods to store, preserve, and enjoy. University of California, ANR, Publication 8568 (major revision of 1997 pub 7231).

 



 


eNewsletter, September 2016


 

MEETINGS AND CONFERENCES

 

Statewide Water Reuse Forum

September 16, 2016
Sacaramento, CA

Governor's Office of Planning and Research

Melissa Partyka, WCFS staff researcher, was invited to attend the Statewide Water Reuse Forum hosted by the Governor’s Office of Planning and Research and held at the CalEPA Headquarters. The forum was widely attended by leading members of the State Water Resources Control Board, public utility districts, environmental advocacy groups, and the NSF Engineering Research Center at UC Berkeley. The purpose of the forum was to discuss the current state of the science/technology behind water reuse in California, current actions being taken by regulatory/governing authorities, and success stories of water reuse driven by community leaders. Breakout sessions were conducted to expose underutilized opportunities for water reuse expansion as well as discussing potential challenges that may impede the success of California’s water reuse goals. Partyka’s role was as a representative of water reuse potential in agricultural settings, an area that has received less attention than urban use.  A report of the proceedings will be presented to the governor’s office and made publically available later this fall.

 



 

 

FARAD Workshop

September 6-17, 2016
Davis, CA

WIFSS hosted a Food Animal Residue Avoidance Database (FARAD) and One Health Curriculum Workshop September 6 – 17, 2016. Sponsored through a grant from the International Veterinary Collaboration for China (IVCC) and Zoetis, this program brought three faculty from Nanjing Agricultural University (NJAU) College of Veterinary Medicine to UC Davis/WIFSS to attend an intensive 10 day program. In attendance were Professors Ruqian Zhao, Liping Wang, and Ruibing Cao. Session topics during week one included One Health in Food Safety, curriculum development related to One Health in Food Safety, antibiotic residues and regulatory issues affecting the USA, outreach activities to improve dairy operations, and methods for blended learning for adult learners.

Sharing their expertise the first week of the workshop were Ria de Grassi, an agricultural issues and policy strategist and Dr. Jessica Light of Zoetis, along with a team from the School of Veterinary Medicine and WIFSS, including Drs. John Angelos, Amanda ArensBennie Osburn, Michael Payne, Birgit Puschner, David Goldenberg and Heather Johnson.

In week two, faculty attended sessions led by Dr. Lisa Tell and her FARAD team on how FARAD functions to assist veterinarians and producers in maintaining a food supply free of drug residues. This program will help in establishing future working relationships between WIFSS/SVM and NJAU to increase educational and research collaborations related to One Health in Food Safety and food supply drug residue avoidance.

FARAD Workshop

 

 

 

 

 

 

 

 

 

 

 

OUTREACH

 

Farm-To-Fork Festival

September 24, 2016
Sacramento, CA

WIFSS volunteers enjoyed greeting the record-breaking attendance crowds spread along seven blocks of Capitol Mall during the fourth annual Farm-to-Fork Festival.  Among the hundreds of vendor booths at the September 24th festival was the School of Veterinary Medicine-WIFSS booth which included family-friendly games focused on testing festival goer’s food safety knowledge. The motto “Food Safety Matters” was front and center in volunteer’s interactions with the hundreds of families that dropped by the booth.

Thanks to the engaging WIFSS team including Amlan Aggrawal, John Angelos, Ronald Bond, Chris Brunner, Jessica Cadriel, Emily Kunz, Bennie Osburn, Melissa Partyka, Robert Pattison, and Clare Wei.

Farm to Fork

 

 

 

 

 

 

 

 

 

 

 

 

 

UC ANR Food Blog

September 2016

Researchers from UC Davis and Washington State University Extension are conducting research and workshops helping answer key questions for the tree fruit industry. Water quality training seminars for growers that have to comply with new water testing requirements have already begun in Washington with the leadership of UC Davis researchers such as Melissa Partyka, Ronald Bond, and Jennifer Chase. The workshops are spreading the word about proper methods for obtaining accurate water samples in order to be in compliance with regulations in the Produce Safety Rules for the Food Safety Modernization Act (FSMA). Read about it in the September Division of Agriculture and Natural Resources Food Blog.

 

 

 

 

 

 

 

 

 

 

 

 

 


eNewsletter, August 2016


 

MEETINGS AND CONFERENCES

 

International Association for Food Protection Annual Meeting

July 31 - August 3, 2016
St Louis, MO

Linda Harris and Alejandro Mazzotta

Linda Harris, Michele Jay-Russell, postdocs Nora Navarro Gonzalez, Mahta Moussavi, Javad Barouei, and graduate student Laura Patterson attended the IAFP annual meeting and presented several posters (below). The meeting was attended by more than 3300 food safety professionals from six continents. Linda became President of the association at the conclusion of the meeting.

Posters presented:

Casulli, K., F. Garces, K. Dolan, L. J. Harris, and B. Marks. Modeling the effect of product temperature, moisture, and process humidity on thermal inactivation of Salmonella in pistachios, (Abstract P2-19). International Association for Food Protection (IAFP) Annual Meeting 2016, St. Louis, MO, July 31- Aug 3. 

Lee D, Tertuliano M, Vellidis G, Antaki E, Harris C, Jay-Russell M, Levy K. Salmonella transport through irrigation systems and the risk of fresh produce contamination on farms in southern Georgia (Abstract P1-18). International Association for Food Protection (IAFP) Annual Meeting 2016, St. Louis, MO, Jul 31-Aug 3.

Moussavi, M., V. Lieberman, C. Theofel, and L.J. Harris. Growth of foodborne pathogens on inoculated pistachios during postharvest handling, (Abstract P2-113). International Association for Food Protection (IAFP) Annual Meeting 2016, St. Louis, MO, July 31- Aug 3.

Mahta Moussavi and her poster


Navarro-Gonzalez N, Patterson L, Wang F, Aminabadi P, Pires A, Micallef SA, Buchanan R, Jay-Russell M. Diversified farms in California: can one tomato spoil the barrel? (Abstract P2-85). International Association for Food Protection (IAFP) Annual Meeting 2016, St. Louis, MO, Jul 31-Aug 3.

Michele and Nora poster



Patterson L, Navarro-Bonzalez N, Aminabadi P, Jay-Russell M, Pires, A. Prevalence of foodborne pathogens in livestock raised on small-scale farms in California (Abstract P2-124). International Association for Food Protection (IAFP) Annual Meeting 2016, St. Louis, MO, Jul 31-Aug 3.

Laura Patterson and her poster


Spanninger P, Navarro-Gonzalez N, Kniel K, Jay-Russell M. Effects of distance on risk associated with wildlife encroachment in field-grown leafy greens (Abstract P-06). International Association for Food Protection (IAFP) Annual Meeting 2016, St. Louis, MO, Jul 31 - Aug 3.

 

 

 

 

 

 

 

 

 

 

 

National Water Resources Association Western Water Seminar

August 5, 2016
Sun Valley, ID

NWRAWCFS staff member Melissa Partyka gave an invited talk during the Irrigation Caucus session at this year’s National Water Resources Association Western Water Seminar, an annual conference that hosts water managers from 19 different states. The purpose of the session was to discuss the current status of FSMA and the possible role of irrigation districts in agricultural water quality compliance. Her talk, entitled “Collaborating for FSMA Compliance: We’re all in this together!” discussed years of research conducted by the Atwill Lab within western irrigation districts, emphasizing the value of collaboration and the part irrigation districts play in making projects a success. She also had an opportunity to discuss current research on cooperative water sampling for growers on a shared resource, a topic that generated a great deal of conversation. Kate Woods, Vice-President Northwest Horticulture Council, gave a companion talk “Food Safety Modernization Act: What it Means for Irrigation Districts and their Growers”, which focused on the current state of the policy and what questions irrigation districts may begin to hear from their customers.

 

 

 

 

 

 

 

 

 

 

 

American Veterinary Medical Association (AVMA) Annual Convention

August 5-9, 2016
San Antonio, TX

Michele receiving awardMichele Jay-Russell attended the American Veterinary Medical Association (AVMA) where she received an Honorary Diploma from the American Veterinary Epidemiology Society. Dr. Craig Carter, President of AVES, presented the award to Dr. Jay-Russell for her significant contributions to veterinary epidemiology, public health and One Health. Another highlight of the meeting for Michele was moderating the James H. Steele One Health session. Opening remarks were given by Marguerite Pappaioanou, former WIFSS board member. Among the presenters were Jerry and Nancy Jaax, veterinarians who were part of a team that led the response to the Ebola outbreak at a primate facility in Reston, VA. The story was featured in Richard Preston’s best-selling book The Hot Zone.

 

 

 

 

 

 

 

 

 

 

 

OUTREACH

 

California Food Emergency Response Team (CalFERT) Commodity Specific Training

August 24-25, 2016
Sacramento, CA

Michele Jay-Russell was one of the instructors for training on Soil Systems and Management with Soil Amendments of Biological Origin, provided for CalFERT and staff from the Food and Drug Branch of California Department of Public Health (CDPH). Trevor Suslow was course organizer and lead instructor.  Michele gave research updates from WCFS and USDA-ARS on “Impact of Application Intervals for the Use of Raw Animal Manure as a Soil Amendment”. She also spoke on “Potential for Transfer from Manure and Fecal Matter to Crops”, in which she gave an update from WCFS transfer studies during irrigation events and other studies of bioaerosol risk.

 

 

 

 

 

 

 

 

 

 

 

 

 

Meet with Washington State Tree-Fruit Growers and Irrigation Districts

August 1-3, 2016
Yakima Valley, WA

Melissa Partyka traveled to Central Washington State to meet with irrigation districts and tree-fruit growers in order to establish working relationships for current research on cooperative sampling for FSMA agricultural water quality compliance. This research will help the produce industry develop water quality programs that not only decrease the sampling burden on individual growers, but establish open lines of communications between growers, their neighbors, and the irrigation districts that serve them. The establishment of confidential relationships and trust between WCFS staff members and members of the produce industry has become the cornerstone of many successful research projects.

 

 

 

 

 

 

 

 

 

 

 

 

 

New series of “Do you know” videos on the way

August 15-17, 2016
Central Valley, CA

Sara Garcia and cameraWIFSS training team members Emily Kunz and Heather Johnson were on site at a Central Valley dairy with Sara Garcia, a UC Davis graduate student, and Marianna Gentilini from DeLaval, to film a new set of DeLaval training videos which will aid viewers in identifying milk fever and calf scours, and understanding the proper maintenance of dairy equipment. The videos, produced by WIFSS in partnership with DeLaval, demonstrate practices that dairy workers can easily implement into their routines to help safeguard milk quality and biosecurity. Read full story here.

 

 

 

 

 

 

 

 

 

 

 

IN THE NEWS

Ronnie Bond sampling

 

July 13, 2016

An article entitled “Simple steps for water sampling” was recently published in the July issue of Good Fruit Grower Magazine featuring three WCFS staff researchers, Melissa Partyka, Ronald Bond and Jennifer Chase. This centerpiece article, intended to demystify sampling for regulatory compliance, was based on interviews held during the agricultural water quality workshops conducted by these three in Washington State, May of 2016. The main article is accompanied by two additional guides; one titled “The math of food safety” explaining the math required for agricultural water testing and “Water sampling 101” a simple list of do’s and don’ts for water sampling.  The article was written by Shannon Dininny and is accompanied by photos from TJ Mullinax. Web and print versions are available.


July 11, 2016

Water Sampling Done Simply

Ronald Bond, Melissa Partyka of WCFS and Ines Hanrahan of the Washington Tree Fruit Research Commission participated in publishing an article through the Washington State University Tree Fruit website, on easy to follow recommendations for microbial water quality sampling under the FSMA Produce Safety Rule for Agricultural Water testing. Updates will be added to follow recommendations by FDA with regards to water testing criteria as soon as they are released.

 

 

 

 

 

 

 

 

 

 

 

PUBLICATIONS

 

Harris, L. J., V. Lieberman, R. P. Mashiana, E. Atwill, M. Yang, J. C. Chandler, B. Bisha, and T. Jones. 2016. Prevalence and amounts of Salmonella found on raw California inshell pistachios. J. Food Prot. 79(8): 1304-1315.

After harvest, pistachios are hulled with mechanical abrasion and then separated in a float tank containing water; the nuts that float (∼15%; floaters) and those that sink (∼85%; sinkers) are dried and stored separately. To determine the prevalence of Salmonella in pistachios, a total of 3,966 samples (1,032 floaters and 2,934 sinkers) were collected within 4 months of the 2010, 2011, and 2012 harvests from storage silos (12 samples from each silo, in most cases) and were stored at 4°C; 100-g subsamples were enriched for the presence of Salmonella. Twenty-one of the floater samples and 11 of the sinker samples were positive for Salmonella: 2.0% prevalence (95% confidence interval [CI], 1.3 to 3.1%) and 0.37% prevalence (95% CI, 0.21 to 0.67%), respectively, for a weighted average prevalence of 0.61%. Levels of Salmonella were determined for positive samples using a most-probable-number (MPN) method with multiple 50-g, three 5.6-g, and three 0.56-g subsamples. Geometric mean levels of Salmonella in floaters and sinkers were 0.66 MPN/100 g (0.14 to 5.3 MPN/100 g) and 0.18 MPN/100 g (0.10 to 0.62 MPN/100 g), respectively. Seven different serovars were identified among the isolates, with nine pulsed-field gel electrophoresis fingerprints; as many as four serovars were isolated from some samples. Salmonella serovars Montevideo (44%), Enteritidis (19%), Senftenberg (16%), Worthington (12%), and Liverpool (9.4%) were most commonly isolated from the initial 100-g samples. The prevalence and levels of Salmonella in pistachios are within those observed for other tree nuts, but the limited number of serovars isolated suggests a narrow and persistent contamination source.

 

 

 

 

 

 

 

 


eNewsletter, July 2016


 

MEETINGS AND CONFERENCES

 

One Health for Food Safety Conference

June 27 - July 22, 2016
Davis, CA

One Health ConferenceEleven faculty representing four vocational colleges in China celebrated the conclusion of an intense 4-week conference for One Health at UC Davis on July 22. The One Health for Food Safety Conference, sponsored by UC Davis Western Institute for Food Safety and Security (WIFSS), provided course participants the opportunity to learn about the connection between the environment, people, and animals. Through classroom lectures presented by UC Davis faculty, and field trips offering hands-on learning experiences, the visiting faculty discovered how they have the power to promote progress towards safer, better quality food systems in China.

Xuzhou Vocational College of Bioengineering, Jiangsu Agri-animal Husbandry Vocational College, Xinjiang Agricultural Vocational Technical College, and Chengdu Agricultural College were represented by faculty with major areas of interest including traditional veterinary medicine, Chinese medicine, food science, bee science, bioengineering, farm products processing and storage, and fermentation engineering.

Robert Atwill, Director of WIFSS, welcomed the group on the opening day and later gave an overview of the programs at WIFSS. At the closing he presented the 11 faculty with certificates of completion. Amanda Arens, Program Manager, Outreach and Training at WIFSS presented an overview of the Web of Causation, illustrating the complex relationships between pathogens and products that can cause contamination. Michael Payne, Dairy Outreach Coordinator, spoke to the faculty about how dairy food safety is managed in the United States and aspects of prudent use of antibiotics in the dairy industry.

Bennie Osburn, Director of Outreach and Training, discussed the approach to developing an overall awareness of food safety issues and summarized the various steps required to address food safety issues from education to regulatory. Heather Johnson, Instructional Systems Designer, WIFSS, discussed vocational education and different teaching methods including problem based learning and blended learning. David Goldenberg, Food Safety and Security Training Coordinator, was instructor for the table top exercises reviewing video segments of potential food safety hazards.  Goldenberg and Johnson facilitated the problem-based learning discussions of the two faculty teams. Michele Jay-Russell, Program Manager for the Western Center for Food Safety and liaison to WIFSS, presented an overview of the relationship of animals and produce.

Osburn, and Chris Brunner, Public Relations Officer with WIFSS, were the conference coordinators. The outreach and training, and research teams, at WIFSS contributed greatly to the success of the conference.

 

 

 

 

 

 

 

 

 

 

 

Food Micro 2016

July 19-22, 2016
Dublin, Ireland

Linda HarrisLinda Harris attended the 25th International ICMFH Conference at University College Dublin, Ireland, where she presented a poster entitled Survival of foodborne pathogens in recirculated fungicides applied to fresh-market citrus fruit (Abstract 520).  ‘One Health Meets Food Microbiology’ was the theme of FoodMicro 2016, sponsored by the International Committee on Food Microbiology and Hygiene (ICMFH), and a wide variety of subjects was discussed including food safety, food hygiene, food biotechnology and the application of molecular approaches. The book of abstracts is available here.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTREACH

 

UCCE Marin

UC Cooperative Extension Marin County has posted a website for the Food Safety Workshop series in which Michele Jay-Russell, Alda Pires, and Trevor Suslow participated in June (see June 2016). Included are the speaker presentations, food safety plan worksheets for home use, and other food safety resources.

 

 

 


 

 

 

 

 

Southeast Regional Agricultural Water Quality Workshops

July 5-8, 2016

WCFS staff members, Melissa Partyka and Ronald Bond traveled to the Southeast Gulf States of Mississippi and Louisiana to discuss the creation of region-specific agricultural water quality training for FSMA compliance. They established relationships with a number of regional government and extension agents including State Conservationist Kurt Readus of the USDA-NRCS in Jackson, MS,  Bakarat Mahmoud, an Assoc. Extension Professor in Food Safety at Mississippi State University, and Achyut Adhikari, an Asst. Professor and Extension Food Safety Specialist at Louisiana State University in Baton Rouge, LA.  Ronald and Melissa will be coordinating with these individuals and several others from Arkansas and Alabama to conduct at least two workshops in the region this coming fall.

 

 

 

 

 

Jackson Meeting

Melissa Partyka

 

 

 

 

 

 

 

 

 

PUBLICATIONS

 

Antaki, E.M., G. Vellidis, C. Harris, P. Aminabadi, K. Levy, and M. Jay-Russell.  2016Low Concentration of Salmonella enterica and Generic Escherichia coli in Farm Ponds and Irrigation Distribution Systems Used for Mixed Produce Production in Southern Georgia.   Foodborne Pathog. Dis.  July 11, 2016, ahead of print. doi:10.1089/fpd.2016.2117.

The purpose of this research was to assess the presence and concentration of Salmonella and generic Escherichia coli in irrigation water from distribution systems in a mixed produce production region of southern Georgia. Water samples were collected during three growing seasons at three farms irrigating crops with surface water (Pond 1, Pond 2) or groundwater (Well) during 2012–2013. Salmonella and generic E. coli populations were monitored by culture and Most Probable Number (MPN).  Salmonella was detected in both ponds in surface and subsurface samples.  It was also detected in center pivot and drip line samples that distributed pond waters.  It was not detected in well pumps or associated drip line water samples.  The overall mean Salmonella concentration for positive water samples was 0.03 MPN/100 mL (range <0.0011–1.8 MPN/100 mL). Nine Salmonella serovars comprising 22 pulsotypes were identified.  Generic E. coli was detected in water from both farm ponds and irrigation distribution systems, but the concentrations met FSMA microbial water quality criteria. The results from this study will allow producers in southern Georgia to better understand how potential pathogens move through irrigation distribution systems.

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Davidson, G. R., J. C. Frelka, and L. J. Harris. 2016. Efficacy of peracetic acid-based sprays against microbial loads on conveyors in a walnut hulling facility. Food Prot. Trends 38(4):301-309.

The efficacy of commercial peracetic acid (PAA)-based sanitizer spray applications was evaluated for efficacy in reducing aerobic plate counts (APC) and Escherichia coli/ coliform counts (ECC) on conveyor belts in a commercial walnut huller. Water alone was compared to one of four PAA-based sanitizers at concentrations of 100 or 200 ppm PAA. APC and ECC were significantly (P < 0.05) lower on conveyor belts sprayed with 200 ppm PAA than on those sprayed with water. Significantly (P < 0.05) lower APC and ECC were observed on conveyor belts sprayed with one PAA formulation at 100 ppm (5.00 and 4.14 log CFU/100 cm2, respectively) than on those sprayed with water (6.40 and 6.10 log CFU/100 cm2, respectively). The efficacy of this sanitizer was not significantly different (P > 0.05) at 25, 50, 80, or 100 ppm (APC: 4.32 to 4.51 log CFU/100 cm2; ECC: 2.79 to 2.87 log CFU/100 cm2). PAA sprays reduce microbial levels on conveyer belt surfaces in walnut hulling facilities, which may reduce the potential for cross-contamination.

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Frelka, J. C., G. R. Davidson, and L. J. Harris. 2016. Changes in aerobic plate and E. coli-coliform counts and in populations of inoculated foodborne pathogens in inshell walnuts during storage.  J. Food Prot. 79(7):1143-1153.

After harvest, inshell walnuts are dried using low-temperature forced air and are then stored in bins or silos for up to 1 year. To better understand the survival of bacteria on inshell walnuts, aerobic plate counts (APCs) and Escherichia coli/coliform counts (ECCs) were evaluated during commercial storage (10 to 12°C and 63 to 65% relative humidity) over 9 months. APCs decreased by 1.4 to 2.0 log CFU per nut during the first 5 months of storage, and ECCs decreased by 1.3 to 2.2 log CFU per nut in the first month of storage. Through the remaining 4 to 8 months of storage, APCs and ECCs remained unchanged (P > 0.05) or decreased by <0.15 log CFU per nut per month. Similar trends were observed on kernels extracted from the inshell walnuts. APCs and ECCs were consistently and often significantly higher on kernels extracted from visibly broken inshell walnuts than on kernels extracted from visibly intact inshell walnuts. Parameters measured in this study were used to determine the survival of five-strain cocktails of E. coli O157:H7, Listeria monocytogenes, and Salmonella inoculated onto freshly hulled inshell walnuts (∼8 log CFU/g) after simulated commercial drying (10 to 12 h; 40°C) and simulated commercial storage (12 months at 10°C and 65% relative humidity). Populations declined by 2.86, 5.01, and 4.40 log CFU per nut for E. coli O157:H7, L. monocytogenes, and Salmonella, respectively, after drying and during the first 8 days of storage.  For some samples, E. coli or L. monocytogenes populations were below the limit of detection by plating (0.60 log CFU per nut) by day 183 or 148, respectively; at least one of the six samples was positive at each subsequent sampling time by either plating or by enrichment.

 

 

 

 

 

 

 

 


eNewsletter, June 2016


 

MEETINGS AND CONFERENCES

 

Center for Produce Safety Research Symposium

June 28-29, 2016
Seattle, WA

CPSLinda HarrisMichele Jay-Russell, and WCFS postdoctoral scholar Nora Navarro-Gonzalez attended the annual CPS Research Symposium. Linda and Michele gave Lightening Round and Poster Brief presentations on their CPS-funded projects. Linda gave a presentation on Assessing postharvest food safety risks and identifying mitigation strategies for foodborne pathogens in pistachio and was co-author on Michael Cahn’s presentation on Microbial food safety risks of reusing tail water for leafy green production

Nora at CPSMichele gave two presentations: Evaluation of falconry as an economically viable co-management strategy to deter nuisance birds in leafy green fields. Proof of concept (co-PI Trevor Suslow) and Does Salmonella move through the irrigation systems of mixed produce farms of the southeastern United States? (PI George Vellidis). She was also  Co-PI on Trevor Suslow’s project entitled Rapid tests to specifically differentiate clinically significant from environmental STEC towards reducing unnecessary crop destruction. In the final session of Day 2, Michele served as a panelist with Samir Assar (FDA) and Robert Sakata (Sakata Farms) addressing  Animal Intrusion and On-Farm Pathogen Detection

 

 

 

 

 

 

 

 

 

 

 

 

OUTREACH

 

Agricultural Water Quality Workshops

May 16-19, 2016
Yakima, Wenatchee and Selah, WA

Ag Water Quality WkshopWCFS staff Melissa Partyka, Ronald Bond and Jennifer Chase conducted three agricultural water quality workshops in the Yakima and Wenatchee Valleys of Central Washington State. Workshops were co-hosted by Washington State Tree Fruit Association with specialty crop block-grant funds along with the help of Washington Tree Fruit Research Commission and Northwest Horticultural Council. The workshops were attended by 50+ total participants in the Yakima region and 30+ in the Wenatchee region. The workshops focused on disseminating the agricultural water requirements under FSMA and to demonstrate on farm situational aseptic water sampling techniques. The participants were from the major packinghouses, grower marketing groups, on-farm food safety supervisors, irrigation districts, and analytical labs and greater than 90 percent wanted the workshops repeated according to pre and post surveys.  

 

 

 

 

 

 

 

 

 

 

 

Preventive Controls Qualified Individual Training

June 1-3, 2016
Modesto, CA

The Food Safety Preventive Controls Alliance (FSPCA) course, which is the standardized curriculum recognized by FDA to meet the requirements for a Preventive Controls Qualified Individual, was presented for the Almond Board of California. Linda Harris joined trainers Richard Stier, Tim Birmingham, and Guangwei Huang. The following week Linda also participated in an Almond Board Grower Focus Group to discuss the impact of the Produce Safety rule on California Almond Growers.

 

 

 


 

 

 

 

 

Meeting with delegation from the Ministry of Agriculture of China

June 2, 2016
Davis, CA

Rob Atwill and Xunde Li met a delegation from the Ministry of Agriculture of China and talked about WIFSS’ research, outreach, training, and international programs on food safety and security. The International Programs Office of the College of Agricultural and Environmental Sciences hosted the delegation, which was coordinated by the USDA international office.

 

 

 


 

 

 

 

 

Postharvest Technology of Horticultural Crops Short Course

June 13-24, 2016
Davis, CA

Linda Harris gave a presentation on Food Safety: General Principles on the second day of the 38th Annual Postharvest Technology Short Course. This two-week intensive study of the biology and current technologies used for handling fruits, nuts, vegetables and ornamentals in California is designed for research and extension workers, quality control personnel and other professionals interested in current advances in postharvest technology of horticultural crops. The first week consists of lectures and labs held on campus; the second week is a field tour of operations in the San Joaquin Valley, Sacramento Valley, Monterey Coast and San Francisco Bay Area. The agenda for the first week is available here.

 

 

 


 

 

 

 

 

Almond Quality & Food Safety Symposium

June 16, 2016
Modesto, CA

Linda Harris gave a presentation entitled Hazard analysis for almonds – resources to help you conduct the “Almond Hazard Analysis” at the 18th Annual Almond Quality and Food Safety Symposium in Modesto, CA.

 

 

 


 

 

 

 

 

On Farm Food Safety Workshop Series

June 20, 2016
Petaluma, CA

Michele Jay-Russell and Alda Pires, Extension Specialist in Urban Agriculture and Food Safety (School of Veterinary Medicine, UC Davis) presented the third workshop in this four-part series, intended to help North Bay farmers learn the basics of food safety science, begin to implement record keeping and risk reduction practices on their operations, and gain information designed specifically for the area’s small-scale and diversified fruit and vegetable farms.  Michele and Alda focused on food safety related to soil, livestock, and wildlife.

The workshop series is supported, in part, by the Agricultural Sustainability Institute at UC Davis and a Specialty Crop Block Grant with the California Department of Food and Agriculture.

 

 

 


 

 

 

 

 

IN THE NEWS

 

Comstock Magazine

An article entitled Watching What You Eat in Comstock’s Magazine recently highlighted UC Davis researchers Michele Jay-Russell and her team collecting data on the survival of E. coli in animal manures, which will provide better scientific data for the required time period between application of manure and harvest of food crops. The work of Ronald Bond and Melissa Partyka in examining microbial survival in irrigation water runoff and sediment basins also is mentioned. The article, written by Sena Christian, included a discussion of the recent outbreaks involving Chipotle restaurants.

 

JAVMA

Michele Jay-Russell and Michael Doyle’s new edited book, Food Safety Risks from Wildlife: Challenges in Agriculture, Conservation, and Public Health, received a highly favorable review by  Daniel E. Lafontaine, DVM, MPH, DACVPM (HACCP Consulting Group LLC) in the June 15, 2016 issue of the Journal of the American Veterinary Medical Assocation (JAVMA).

Quote from the review:

“The authors of this book have certainly attained their goal of advancing the understanding of wildlife’s potential impact on food safety and public health. Every wildlife and food safety veterinarian should have this book in their library.”

More information about the book can be found here.

 

 

 

 

 

 

PUBLICATIONS

 

 

Penny, C., B. Grothendick, L. Zhang, C. M. Borror, D. Barbano, A. J. Cornelius, B. J. Gilpin, C. K. Fagerquist, W. J. Zaragoza, M. T. Jay-Russell, A. J. Lastovica, C. Ragimbeau, H.-M. Cauchie and T. R. Sandrin.  2016.  A designed experiments approach to optimizing MALDI-TOF MS spectrum processing parameters enhances detection of antibiotic resistance in Campylobacter jejuni. Front. Microbiol., 31 May 2016.00818

MALDI-TOF MS has been utilized as a reliable and rapid tool for microbial fingerprinting at the genus and species levels. Recently, there has been keen interest in using MALDI-TOF MS beyond the genus and species levels to rapidly identify antibiotic resistant strains of bacteria. The purpose of this study was to enhance strain level resolution for Campylobacter jejuni through the optimization of spectrum processing parameters using a series of designed experiments. A collection of 172 strains of C. jejuni were collected from Luxembourg, New Zealand, North America, and South Africa, consisting of four groups of antibiotic resistant isolates. Applying optimal preprocessing parameters, beta-lactam resistance detection was increased by 34%. These results suggest that spectrum processing parameters, which are rarely optimized or adjusted, affect the performance of MALDI-TOF MS-based detection of antibiotic resistance and can be fine-tuned to enhance screening performance.

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New versions of the following programs are available on the WCFS website:

Mashiana, R. and L. J. Harris. 2016. Determining your microbiological water quality profile (MWQP) for untreated ground water used in the production of fresh produce, Version 3.0. (Excel spreadsheet–based tool.) Available at here.

Mashiana, R. and L. J. Harris. 2016. Determining your microbiological water quality profile (MWQP) for untreated surface water used in the production of fresh produce, Version 4.0. (Excel spreadsheet–based tool.) Available here.

 

 

 

 

 

 

 

 

 

 

ANNOUNCEMENTS

 

UPDATED: The FDA has decided to add an additional 14 days to comment on the following request for scientific data, information, and comments that appeared in the Federal Register on March 4, 2016: 

The new deadline for comments is July 19, 2016

To submit comments electronically to the docket, visit www.regulations.gov and enter FDA-2014-N-1497 in the search box.

 

 

 

 

 

 

 

 


eNewsletter, May 2016


 

IN THE NEWS

 

LGMA Metrics Reviewed by Expert Panel

 
LGMAMichele Jay-Russell was a member of a four-person Expert Panel that reviewed the California Leafy Greens Marketing Agreement (LGMA) metrics. The Commodity Specific Food Safety Guidelines for Production and Harvest of Leafy Greens was first published in 2007 and most recently revised in 2013. “A key focus of this revision was to identify, where possible and practical, metrics and measures that could be used to assist the industry with compliance with the guidelines…. Metrics were researched for three primary areas: water quality, soil amendments, and environmental assessments/conditions.” The panel was charged with evaluating the scientific validity of the guidelines and whether the guidelines provide at least the same level of public health protection as the new FDA Produce Rule. Their  findings, published on May 17, 2016, are summarized here. The independent review was conducted by iDecisionSciences and Western Growers. The panel also included Robert Bracket (IFSH-IIT), Kali E. Kniel (University of Delaware) and Manan Sharma (USDA-ARS). The full report is available here.

 

 

 

 

 

 

 

 

 

 

 

MEETINGS AND CONFERENCES

 

The 2nd Annual UC Davis Postdoctoral Research Symposium

May 18, 2016
Davis, CA

Elizabeth Antaki and Nora Navarro-Gonzalez, WCFS researchers, were among more than 50 postdoctoral researchers who gave oral presentations in the 2nd annual Postdoctoral Research Symposium.  In addition, there were poster sessions and panel discussions.  Elizabeth spoke on “Assessment of Zoonotic Risks in Aquaponic Produce Production in a session entitled Agricultural Enhancements” in a session entitled Agricultural Enhancements.  Nora spoke on “Food-borne Pathogens in Free-range Cattle: Is there transmission from/to birds?” in a session entitled Contagions and Infestations.  Abstracts for all presentations are available here.

 

 

 

 

 

 

Nora and Creux

Nora Navarro-Gonzalez receiving best speaker award from Nicky Creux, event organizer, at the postdoctoral research symposium

 

 

 

SMS Plans

May 10-11, 2016
Pennsville, NJ

WIFSS  is a partner in USDA-state collaboration with the Secure Milk Supply Plan, (SMS), dedicated to planning for business stability during an outbreak of foot-and-mouth disease (FMD). The voluntary program seeks to pre-approve biosecurity measures which would allow continued marketing of milk during disease control efforts. Academic and regulatory representative from twelve Mid-Atlantic States met in Pennsville New Jersey to strategize on how to implement the plan on the East Coast. Michael Payne from WIFSS attended to learn how other states were addressing logistical hurdles and share some of what California is doing. 

 

 

 

 


 

Dairy Experts

Dairy experts from the East Coast huddle around the rear end of a milk tanker listening as the plant manager describes biosecurity efforts which would keep from spreading Hoof and Mouth Disease from one farm to another during an outbreak. 

 

 

TRAINING

 

Food Systems Disasters and Recovery

May 10 & 11, 2016
Harrionville, MO

DHS and RDPC logos

Tracey Stevens, an instructor in Animals in Disaster with WIFSS was the trainer for the AWR 155 and 156 courses which took place in Harrisonville, Missouri, on May 10 and 11. The AWR 155 course, Principles of Frontline Response to Agroterrorism and Food Systems Disasters, outlines the use of the Incident Command System (ICS) and the principles of Unified Command (UC) in an agroterrorism and food safety system disaster. First responders taking the course learned about the need to quickly identify and eradicate outbreaks of animal diseases by isolating and destroying livestock and wildlife, removing and disposing of contaminated animal products, and disposing of contaminated feed and related materials.

In the AWR 156 course, Principles of Planning and Implementing Recovery, participants were trained in recovery operations, procedures, and techniques to be implemented following an incident of agroterrorism. They learned detailed steps for planning for recovery, both within participants’ own organizations and as stakeholders in the larger community-wide incident command system.

WIFSS currently has six Department of Homeland Security certified courses that are offered through the Rural Domestic Preparedness Consortium and aim to train first responders in rural areas of the country for disaster situations that involve or directly affect our food supply system.

 

 

 

 

 

 

OUTREACH

 

Food Safety in Madagascar

May 2-6, 2016
Davis, CA

Nirina ”Feno” Randriambololona, a Humphrey Fellow, from Madagascar, spent one week at WIFSS learning about the One Health approach to food safety.  Foodborne illnesses are a major concern in her country and there are no programs at present to address the issues surrounding these diseases. During this time she reviewed and discussed ways by which she could develop educational and outreach programs that could be provided in schools, or in rural communities. Much of the food is imported from other countries as well, and little is known of the source or quality of these food supplies for the population. WIFSS has provided her with background information and encouragement to start a program in the country.

 

 

 

 

 

Feno, Heather, Jessica and John

Feno stands outside the WIFSS building with Heather Johnson, Jessica Cadriel and John Angelos.

 

 

Biosecurity for Dairy Industry

May 6, 2016
Davis, CA

Chris Morley, a veterinarian with DairyNZ, visited WIFSS to discuss strategies on approaching biosecurity for the dairy industry in New Zealand. Morley and Michael Payne, John Angelos, Pam Hullinger and Bennie Osburn discussed the New Zealand program which is supported by a checkoff system addressing agroterrorism and all-hazard issues having the potential to impact the dairy industry. The program not only addresses dairy cattle and the dairy products, but also such things as the introduction of invasive plant species which have the potential of crowding out pastures and forages essential to the feed and food supply. The exchange between DairyNZ and WIFSS compliments the Secure Milk Supply Plan, which WIFSS is involved with through its work with SMS Partners including UC Davis, Iowa State University, University of Minnesota, USDA/NPIC, and USDA/CEAH.

 

 

 

 

 

 

Cows

 

 


eNewsletter, April 2016


 

MEETINGS AND CONFERENCES

 

FDA Feeds Meetings

April 12-15, 2016
Davis, CA

The Feeds Curriculum Development Team met in Davis in April to continue development of curriculum for feed regulatory inspectors for the National Food Safety Curriculum. WIFSS’ team members Bennie Osburn, Mike Payne, and Heather Johnson welcomed the group to Davis and participated in the meeting which included representatives from FDA’s Division of Human Resource Development (DHRD), the International Food Protection Training Institute (IFPTI), and the Association of American Feed Control Officials (AAFCO).

The meeting is part of the ongoing effort of the Animal Feed Curriculum Framework Project as part of the collaborative project to develop a competency-based curriculum framework for state animal feed control officials in the U.S. The feeds curriculum is to help satisfy the training called for in Standard 2 of the Animal Feed Regulatory Program Standards (AFRPS).

 

FTDC Team

Bennie Osburn, Heather Johnson, and Mike Payne of WIFSS meet with the Feeds Curriculum Development Team

 

 

 

 

 

 

 

 

2016 International Conference on One Medicine One Science

April 24-27, 2016
Minneapolis, MN

WIFSS participated in the 2nd International Conference on One Medicine One Science at the University of Minnesota in Minneapolis. John Angelos, and Heather Johnson, presented a poster on the Web of Causation, a conceptual model to assess environmental exposures during foodborne outbreak investigations, during the session on Air Quality, Environmental Exposures, and Health. Investigators must systematically work backwards in an outbreak investigation through a complex web of relationships to determine how and why food became contaminated. Using a conceptual model such as the Web of Causation allows for a standardized approach to ensure all aspects and relationships are considered during investigations.

 

Jon Angelos and Heather Johnson

WIFSS’ John Angelos and Heather Johnson stand in front of Web of Causation poster at the 2nd International Conference on One Medicine One Science

 

 

 

 

 


 

 

OUTREACH AND TRAINING

 

All Hazards Preparedness

April 6 & 7, 2016
Sacramento, CA

First responders attending the pilot courses for All Hazards Preparedness for Animals in Disasters, and All Hazards Planning for Animal, Agricultural, and Food Related Disasters, shared their experience with disaster planning and preparedness as they took part in hands-on, problem-solving activities in the courses which took place at the California Fire & Rescue Training Authority in Sacramento.

Tracey Stevens, an instructor in Animals in Disaster with WIFSS was the trainer for the AWR 328 course.  Tracey and Holly Powers, Solano county sheriff’s Office of Emergency Services, taught the course on MGT 448. Also on board from WIFSS to lend support with the classes were Amanda Arens, Heather Johnson, and Bennie Osburn.

 

Tracey Stevens

Tracey Stevens leads AWR 328 group discussion

 

 

 

 

 

 

 

Media Contact on Raw Milk Controversy

Food Republic

 

Michele Jay-Russell is quoted in an article, written by Christine Haughney and published on April 18 in Food Republic, an online newsletter.  The article, entitled “Is America Playing a Risky Game of Raw-Milk Roulette?” presents opinions on both sides of the controversy and discusses legislative responses by states to the issues.

 

 

 

 

 

 

 

 

ANNOUNCEMENTS

 

UPDATED: Risk Assessment of Foodborne Illness Associated With Pathogens From Produce Grown in Fields Amended With Untreated Biological Soil Amendments of Animal Origin; Request for Scientific Data, Information, and Comments

The Food and Drug Administration (FDA) extends comment period on requesting scientific data, information, and comments that would assist the Agency in its plan to develop a risk assessment for produce grown in fields or other growing areas amended with untreated biological soil amendments of animal origin (including raw manure).

Comments are due by July 5, 2016.

To submit comments electronically to the docket, visit www.regulations.gov and enter FDA-2014-N-1497 in the search box.

The Constituent Update addressing this announcement can be found here.

For more information:
FR Notice
Q&A with Samir Assar
Produce Rule

 

 

 

 

 

 


eNewsletter, March 2016


 

CONFERENCES AND MEETINGS

 

FDA Feeds Meetings

February 22-26, 2016
Hallmark Inn, Davis, CA

WIFSS hosted a meeting of the Animal Feed Curriculum Framework Project as part of the collaborative project to develop a competency-based curriculum framework for state animal feed control officials in the U.S. The feeds curriculum is to help satisfy the training called for in Standard 2 of the Animal Feed Regulatory Program Standards (AFRPS). 

The project, which is being led by the International Food Protection Training Institute (IFPTI), involves an Expert Workgroup representing state animal feed control agencies, FDA’s Division of Human Resource Development (DHRD), FDA’s Center for Veterinary Medicine (CVM), the Association of American Feed Control Officials (AAFCO), the National Environmental Health Association (NEHA), and UC Davis’ Western Institute for Food Safety and Security (WIFSS).

There were fifteen in attendance at the meeting held last month in Davis, including Heather JohnsonMike Payne and Bennie Osburn from WIFSS. The curriculum under development will be used by state feed inspectors as they standardize their approaches to regulating feeds. Through a series of meetings with these subject matter experts the key process and procedures are being developed that will be needed to assure that all animal feed products meet the new FSMA guidelines.

 

 

 

 

 

 

27th Vertebrate Pest Conference

March 7-10, 2016
Newport Beach, CA

Several papers were presented by WCFS/WIFSS and collaborators at the 27th Vertebrate Pest Conference (full program).

Laurel Sellers, currently with University of California Cooperative Extension (UCCE)-Woodland, presented “Impact of Field Border Plantings on Rodents and Food Safety Concerns.” Overall, a low prevalence of E. coli (non-O157 STEC:  1.4%, n = 353; O157 STEC:  0%, n = 353) and Salmonella (0.8%, n = 353) was found, while Giardia (29.2%, n = 137) and Cryptosporidium (24.1%, n = 137) were more prevalent in captured rodents. The findings suggest that hedgerows do not appear to have a negative impact on crop damage or food-safety concerns in California walnut orchards.  Michele Jay-Russell and Xunde Li were co-investigators on the research project along with Roger Baldwin (Department of Wildlife, Fish, and Conservation Biology) and Rachel Long (UCCE-Woodland).  Last year, Laurel received her M.S. in International Agricultural Development at UC Davis. A link to her thesis abstract can be found here.

Laurel Sellers

Laurel Sellers

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Nora Navarro-Gonzalez, WCFS Postdoctoral Scholar, presented “Use of falconry as deterrent of nuisance birds in leafy greens fields in Northern California.”  This project (PI: Jay-Russell) was funded as a proof-of-concept study by the Center for Produce Safety (CPS).  Nora conducted the study in Monterey County produce fields with Kathleen Tigan, professional falconer from Tactical Avian Predators, and her trained bird abatement raptors.  She concluded that 1) bird activity in adjacent land is important in the control of nuisance birds; 2) falconry can reduce the use of fields by birds in days of high bird pressure/ activity; and 3) use of falconry is related to lower fecal contamination in lettuce, probably because of less time spent on the field by birds. Nora received a UCD Postdoctoral Scholars Association travel award to help with costs to attend the conference.

Kathleen Tigan and Nora Navarro-Gonzalexz

Kathleen Tigan (left) and Nora Navarro-Gonzalez

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Paula Rivadeinera (former WCFS postdoctoral scholar) currently with the University of Arizona-Yuma presented “Pathogen risks related to the movement of birds frequenting livestock and fresh produce growing areas in the southwestern U.S.” This project was also funded by CPS (PI: Jay-Russell) and included collaborators from the Arizona Game and Fish Department. Findings from the study indicate that growers should continue efforts to deter large flocks of nuisance birds from defecating in produce fields, and may need to increase the buffer zone distance from a leafy green field to a concentrated animal feeding operation (CAFO) beyond 400 feet environmental assessments indicate a significant risk of bird activity in the field.

Paula Rivadeinera

Paula Rivadeinera

 

 

 

 

 

 

 

OUTREACH

 

Webinar Presentation

February 29, 2016

Linda Harris presented a one and a half hour talk on “Propylene oxide and the tree nut industry” to staff at the Food and Drug Administration Center for Food Safety and Applied Nutrition (CFSAN) and California Food Emergency Response Team (CalFERT). There were 85 participants from across the U.S..

 

 

 

 

 

 

4th Annual North Coast Farmer’s Convergence

March 1-2, 2016
Willits and Hopland, CA

Michele Jay-Russell was a Roundtable co-Facilitator with Alda Pires on the topic Learn how to safely use animal biological amendments on your farm on Day 1 of the meeting in Willits. Day 2 was a Food Safety and FSMA Workshop held at the Hopland Research and Extension Center. Michele gave two invited presentations, “Using Animal Biological Amendments”and “Farm and Wildlife Interface.” Alda Pires and Trevor Suslow from UC Agriculture and Natural Resources (ANR) also presented on food safety at the workshop on Day 2, which was attended by about 30 farmers and farm supporters..

 

 

 

 

 

 

29th Annual Small Farm Conference

March 6-7, 2016
Sacramento, CA

Linda Harris participated in a pre-conference workshop on Starting a SUCCESSFUL specialty food business for the California Small Farm Conference. Her talk was entitled “Staying safe and legal: Food safety and regulations.” About 20 food entrepreneurs attended.

Michele Jay-Russell was Moderator at a workshop on Food safety on biodiversified small size farms and the FSMA Produce Safety Rule. Presenters for the workshop were Dave Runsten, Community Alliance for Family Farmers (CAFF); Paul Underhill, Terra Firma Farm, and Marisa Alcorta formerly with Pie Ranch; and Alda Pires, UCD School of Veterinary Medicine, UCCE, ANR. They also had a booth in the exhibit for organic farmers with information about the Raw Manure and Compost survey for organic farmers.

James Stover

James Stover, WCFS undergraduate at exhibit booth 

 

 

 

 

 

 

Humphrey Fellows

March 14, 2016
WIFSS, Davis, CA

Members of the Hubert H. Humphrey Fellowship Program from Cambodia, Madagascar, Nepal and Mexico attended a meeting held at WIFSS on March 14, to learn more about the One Health for Food Safety program. Michele Jay-RussellHeather JohnsonJohn Angelos, and Bennie Osburn discussed the research programs in the WCFS, the blended learning approach to instruction used by WIFSS, the outline of the new curricular framework being developed for the One Health concepts for food safety, and the WIFSS outreach, training, and water quality programs. There was considerable interest on the part of the visitors, and some plan to spend additional time with the WIFSS faculty during their time at UC Davis. 

 

 

 

 

 

 

Master Food Preserver Program

March 12, 15, and 21, 2016
PlacervilleSan Luis Obispo, and Bishop, CA

Linda Harris gave several presentations to about 75 (total) Master Food Preserver volunteers in El Dorado, San Luis Obispo, and Inyo/Mono counties. The Master Food Preserver program is a state-wide program similar in structure to the Master Gardener Program. The topics were "Basic principles of food preservation”, “Controlling microbial growth/food preservation”, “Botulism,” and “Steam canners”. Also in San Luis Obispo on March 15, Linda gave a presentation on The Food Safety Modernization Act: Pre- and Post-harvest water” to small farmers, gleaning organization, community gardens/master gardener staff. There were 15 attendees for this talk.

 

 

 

 

 

 

Preventive Controls for Human Food Lead Trainer Workshop

March 8-10 and 29-31, 2016
Davis, CA

Linda Harris hosted two workshops on becoming Preventive Controls for Human Food Lead Trainers.  Instructors from the Food Safety Preventive Controls Alliance taught the course, including Bob Brackett, Director of the Institute for Food Safety and Health.  Twenty-nine people attended the March 8-10 workshop and another 32 the March 29-31 workshop. Staff from the California Department of Public Health and several faculty from UC Davis became Food Safety Preventive Controls Lead Instructors including Linda Harris, Trevor Suslow, Alda Pires, and Michele Jay-Russell.

 

 

 

 

 

 

Global Food Security

March 29, 2016
University of Pennsylvania

University of Pennsylvania

Bennie Osburn will be a guest lecturer on March 29 in the course on Veterinary Medicine and Global Food Security at the University of Pennsylvania, School of Veterinary Medicine. In his lecture on “Food Safety: The Wicked Problem,” he will talk to the class of 120 plus students about career opportunities in the area of global health and food safety.

 

 

 

 

 

 

Pilot Courses

March 15 and 16, 2016
WIFSS, Davis, CA

The WIFSS training team including Amanda ArensHeather JohnsonMike PayneTracey StevensBennie OsburnJessica CadrielGregory WlasiukEmily Kunz, and David Goldenberg, met in March to fine tune the delivery of two pilot courses for the Department of Homeland Security certified courses that are offered through the Rural Domestic Preparedness Consortium.

AWR328AWR 328, All Hazards Preparedness for Animals in Disasters, is an awareness level course that will provide tools to protect, respond to, and recover from the consequences of disasters such as fire, flood, heat, earthquake, tornadoes, hurricanes, hazardous materials and catastrophic disease exposure involving animals in rural communities.

MGT448MGT 448, All Hazards Planning for Animal, Agricultural, and Food Related Disasters, is a management level course providing the background information needed to lead a multi-agency team of emergency planners in the development of an Emergency Support Function, (ESF), annex for food and/or animal related disasters to supplement their community's existing Emergency Operation Plan, (EOP).

The first pilot course for AWR 328 All Hazards Preparedness for Animals in Disasters takes place in Sacramento, CA, on April 6. Register here.

A pilot course for MGT 448, All Hazards Planning for Animal, Agricultural, and Food Related Disasters, will take place in Sacramento, CA, on April 7. Register here.

 

 

 

 

 

 

ANNOUNCEMENTS

 

WCFS Website

New on the WCFS website is a section on Agricultural Water, which includes version 2 of the water calculator.

 

 

 

 

 

 

Risk Assessment of Foodborne Illness Associated With Pathogens From Produce Grown in Fields Amended With Untreated Biological Soil Amendments of Animal Origin; Request for Scientific Data, Information, and Comments

The Food and Drug Administration (FDA) is requesting scientific data, information, and comments that would assist the Agency in its plan to develop a risk assessment for produce grown in fields or other growing areas amended with untreated biological soil amendments of animal origin (including raw manure). The Federal Register announcement is available here.  Comments are due by May 3, 2016.

For more information:

FSMA Final Rule on Produce Safety: Raw Manure; Questions and Answers with Samir Assar

 

 

 

 

 

 


eNewsletter, February 2016


 

OUTREACH

 

Northwest Irrigation Operators Biennial Conference

February 17, 2016
Boise, ID

Rob Atwill gave a set of lectures at this meeting, attended by irrigation districts from throughout the Pacific Northwest and Canada. Topics of discussion were practical strategies to implement FDA's agricultural water quality criteria that were finalized on November 27 and described in the FDA document, "Standards for the Growing, Harvesting, Packing, and Holding of Produce for Human Consumption." This meeting was a good chance to explain how bacterial indicators function as markers of irrigation water quality, how to sample set of sampling program, and challenges and opportunities to implementing these regulations.

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NAU-UC Davis Graduate Education Conference on One Health

January 25-February 12, 2016
UC Davis

Twenty-seven students from Nanjing Agricultural University, majoring in diverse studies, attended the NAU-UC Davis Graduate Education Conference on One Health, held in Davis, January 25 through February 12.  The conference was sponsored by Nanjing Agricultural University, (NAU), and hosted by the Western Institute for Food Safety and Security, (WIFSS) for undergraduate students who have an interest in graduate programs at UC Davis, as part of the NAU-UC Davis One Health Center for Food Safety joint program.  During the first week of the conference the students were assigned to five teams, and throughout the conference the teams met periodically to discuss the concept of One Health, what they’d learned in lectures and during field trips, and to prepare for their team presentations describing a chosen food safety issue and solutions to the problem. Thirty-one faculty and staff from agriculture, biology, veterinary medicine and medicine participated in the conference, including John Angelos, Rob Atwill, David Goldenberg, Heather Johnson, Bennie Osburn, Missy Partyka, and Michael Payne from WIFSS, Michele Jay-Russell, from the Western Center for Food Safety (WCFS).

On the first day of the conference the students were welcomed by Rob Atwill, who gave an overview of the research taking place at WIFSS. During a field trip to the USDA Agricultural Research Services field station in Salinas he gave a presentation on the ecology of pathogens in the Salinas Valley. Also speaking at the field station was Missy Partyka, who talked about food safety environmental investigations.

John Angelos talked to the students about training for One Health in food safety, and David Goldenberg gave a presentation on St. Patrick’s Day Revenge, a table-top exercise for produce risk factors.  Michael Payne presented case scenarios involving environmental contamination of dairy cattle, and Michele Jay-Russell gave an overview of food safety risks from wildlife.  Heather Johnson spoke on the subject of on-line blended learning, and served as a team leader. 

Bennie Osburn lectured on the concept of One Health, and what happens during FDA foodborne outbreak investigations. In addition, Osburn served as director for the conference, and a team leader.  Rounding out the team leadership were James Cullor, from the School of Veterinary Medicine, and Chris Brunner, the program communications representative at WIFSS, and co-coordinator for the conference.

.NAU Group Photo

Rob Atwill, Director, Western Institute for Food Safety and Security, stands (center) with conference participants, Chris Brunner and Bennie Osburn.

 

 

 

 

 

 

PUBLICATIONS

 

Melissa Partyka, Ronald Bond, Jennifer Chase, and Rob Atwill, in collaboration with Luana Kiger from the Natural Resources Conservation Service, USDA, recently published, "Multistate evaluation of microbial water and sediment quality from agricultural recovery basins," in the Journal of Environmental Quality. This article discusses how bacterial pathogens can occur in the irrigation water and underlying sediment from these tail-water and sediment-capture basins in the Western and Eastern United States. These are important conservation practices for a variety of ecosystem and agricultural services. This work found that management practices such as dewatering of the basin and sufficient drying of sediments was associated with a reduction in bacterial levels which could thereby improve the microbiological safety of the water and associated sediments when used for produce production.