WCFS - Western Center for Food Safety

eNewsletter, July 2017

WCFS & WIFSS Newsletter
View this email in your browser


Welcome to our updated eNewsletter! We've been hard at work this month making food safer and more secure. Please have a look at where we've been. We hope you find it informative. Stop by our websites at either www.wcfs.ucdavis.edu or www.wifss.ucdavis.edu. Thank you for your continued support!

University of California, Davis

Go to:   Meetings   |  Outreach   |   Training


Linda Harris, IAFP President welcoming attendees (top left); Laura Patterson receiving travel award (top right); poster presentations with Gordon Davidson and Chris Theofel (bottom left); Anne-laure Moyne (bottom right)
International Association for Food Protection (IAFP) Annual Meeting | July 7-12, 2017, Tampa, FL
WCFS’ Linda Harris, Michele Jay-Russell, Melissa Partyka, Anne-laure Moyne, Ethan Morgan, Chris Theofel, Mahta Moussavi and Javad Barouei attended the Annual Meeting of the International Association for Food Protection (IAFP).  Harris, as IAFP President, opened the 2017 meeting at the Tampa Convention Center.  She also presented a talk entitled Application of models in a processing plant:  Understanding the importance of validation, in a symposium on Modeling Pathogens in Low-water Activity Foods: What, How, and How to Use It (Session S44).  

Laura Patterson, graduate student in Epidemiology, was a recipient of the IAFP 2017 Student Travel Scholarship award. She is currently working with Alda Pires (UC Cooperative Extension) and Jay-Russell on a WCFS project evaluating waiting periods following the use of rotational grazing with sheep on mixed vegetable crop-livestock organic farms.

Technical oral presentations given (in session order):
Moussavi, M., C. Theofel, and L.J. Harris.  Thermal tolerance of foodborne pathogens on inoculated pistachios, (Abstract T1-01) 

Antaki, E., G. Mangalam, P. Aminabadi, F. A. Sebastião, E. Soto, B. Martínez López, F. Conte, S. Taber, M. Jay-Russell.  Assessment of zoonotic risks in aquaponic lettuce production: a prototype for experimental greenhouse trials. (Abstract T1-03)

Partyka, M.L., R.F. Bond, J.A. Chase, and E.R. Atwill.  Spatiotemporal Variability in Microbial Quality of Agricultural Water Supplies:  Implications for Cooperative Sampling, (Abstract T7-03)

Barouei, J., D.W. Schaffner, and L.J. Harris.  A quantitative risk model to assess postharvest parameters that impact the levels of Salmonella on pistachios, (Abstract T10-01)

Poster presentations by session:
Shiroodi, S.G, A.L. Moyne, and L.J. Harris. Efficacy of peracetic acid for inactivation of foodborne pathogens in imazalil fungicide solutions used in citrus packinghouses, (Abstract P3-77)
Theofel, C., T. Williams, E. Gutierrez, G. Davidson, M. Jay-Russell, and L.J. Harris. Transfer of microorganisms from a dairy calf operation to an adjacent pistachio orchard, (Abstract P3-61)
Lieberman, V., E.W. Morgan, and L.J. Harris.  Reduction of Escherichia coliO157:H7, Listeria monocytogenes, or Salmonella on whole yellow onions (Allium cepa) exposed to hot water or diced onions exposed to lime juice, (Abstract P3-88)
Cobert, A., and L. J. Harris.  Evaluating the recovery of Salmonella from enriched inshell walnuts, (Abstract P3-55)
Navarro-Gonzalez, N., L. Patterson, P. Aminabadi, A. Pires, S. Micallef, R. Buchanan, M. Jay-Russell. 2017. Low prevalence of foodborne pathogens found in produce grown on diversified farms in California, (Abstract P3-51)

Patterson , L., N. Navarro-Gonzalez, P. Aminabadi, E. Antaki, M. Jay-Russell, A. Pires. 2017. Rotational grazing of sheep within organic crop fields: what is an ideal waiting period to minimize food safety risks? (Abstract P3-83)
Patterson, L, N. Navarro-Gonzalez, P. M. T. Jay-Russell , A Pires. 2017. Association between Shiga Toxin-producing Escherichia coli prevalence and biosecurity measures on diversified California farms, (Abstract P2-65)
Laboratory and detection methods
Pinzon, J., K. Kayoshi, J. Roland, A. Sbodio, B. Groschel, W. Chaney, E. Dreyling, M. Jay-Russell, T. Suslow. 2017. Single Marker Detection and virulence gene profiling of STEC in produce and associated farmscape samples, (Abstract P2-195)
Moyne, A.L., L.A. Murphy, M.D. Cahn, S.T. Koike and L.J. Harris.  Microbial quality of tail water in the California Central Coast Salinas Valley, (Abstract P3-230)
Abstracts for all IAFP 2017 presentations may be found by name here or by session here.

American Veterinary Medical Association (AVMA) Annual Convention | July 21-25, 2017, Indianapolis, IN
Michele Jay-Russell presented two invited talks on Sunday morning in the Public and Corporate Practice – Food Safety Veterinarians Continuing Education (CE) session at the annual AVMA convention. The session was sponsored by the American Association of Food Safety and Public Health Veterinarians (AAFSPHV) and the National Association of Federal Veterinarians (NAFV). The presentations were entitled: Foodborne Pathogens in Wildlife and Microbiological Hazards of Wild Birds and Free-Range ChickensShe was also asked to give a short version of the second presentation at the American Association of Avian Pathologists (AAAP) – Public Health Committee, which holds their annual convention in conjunction with AVMA. She joined a lively discussion on potential foodborne pathogen risks related to the increasing free-ranging poultry, and recent multistate outbreaks of salmonellosis linked to live poultry in backyard flocks. 




Poster session:
For the first time, this year AVMA included a Poster CE Session. Jay-Russell presented a poster in the Research and Technology category in collaboration with UC Cooperative Extension and University of Delaware:

Jay-Russell, M., S. Biswas, P. Aminabadi, T. de Melo Ramos, P. Pandey, K. Kniel. 2017. Foodborne pathogen levels in bovine and avian raw manure: informing FDA's produce food safety risk assessment for biological soil amendments, (Abstract A-28).
View the complete program here.


First responders in Mt. Vernon, WA, AWR 328 course, strategize emergency response scenarios during table-top exercise.
All Hazards Preparedness for Animals in Disasters | July 19, 2017, Mt. Vernon, WA
On July 19 first responders from Washington state joined WIFSS in Mt. Vernon, WA, with the goal of streamlining response to emergencies involving pets and livestock. More than 20 professionals with widely diverse backgrounds participated, including firemen, sheriff and animal control officers, shelter and animal rescue volunteers, and emergency planers from county, state, and federal agencies. Michael Payne, Dairy Outreach Coordinator at WIFSS, was the instructor for the one-day class held at Skagit County’s Consolidated Communication Center.  The blended learning curriculum in WIFSS’s AWR 328: All Hazards Preparedness for Animals in Disastercourse starts with an intense self-study taken on-line and concludes with a full day of in-person, scenario-driven table top exercises. The next AWR 328 course is scheduled for October 7 in St. Paul, MN.


Produce Safety Alliance Grower Training | July 25-26, 2017, Fresno, CA
Linda Harris, together with Louise Ferguson and Bwalya Lungu from UC Davis, presented thePSA grower training to pistachio growers.  The training was funded by a grant from the Pistachio Research Board, and covers topics such as agricultural water, worker health and hygiene, soil amendments, wild and domesticated animals, land use, and safety plan development.

Opening day of Integrating One Health for Animal and Veterinary Sciences Conference
Integrating One Health for Animal and Veterinary Sciences Conference | July 31-August 18, 2017, Davis, CA
Students and faculty from Nanjing Agricultural University, and Jiangsu Agri-animal Husbandry Vocational College, are attending the Integrating One Health for Animal and Veterinary Sciences Conference July 31 to August 18 at UC Davis. Participants will be introduced to current animal science and veterinary medical programs at UC Davis. The 3-week conference sponsored by WIFSS raises awareness of the One Health concept. Lectures, combined with field trips, and team-building discussions, help increase participant’s understanding of the interrelationship between people, animals, and the environment.