eNewsletter, June-July 2019
May 2017 | WCFS & WIFSS Newsletter
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We've been hard at work these past few months 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 or Thank you for your continued support!

University of California, Davis


Annual IAFP Meeting | July 21-24, 2019 | Louisville, KY

Several of our faculty and staff participated in the 2019 International Association of Food Protection (IAFP) Annual Meeting.  At the awards banquet, Linda J. Harris received the 2019 IAFP Fellow Award, which recognizes professionals who have contributed to IAFP and its affiliates with distinction over an extended period of time. Congratulations, Linda!

Check out the Annual Meeting App or IAFP website for the complete program. Click on the titles below to view abstracts presented by WIFSS, WCFS, and affiliates during the meeting.

Round Tables and Symposia Oral Presentations and Posters
IAFP presenters (L to R): Ronny Bond, Melissa Partyka, Michele Jay-Russell, Peiman Aminabadi, Alda Pires, Jennifer Chase


Suzhou Polytechnic Institute of Agriculture Visit
 | July 26, 2019 | Davis, CA

Li Zhenlu, Secretary of the Party Committee, Suzhou Polytechnic Institute of Agriculture, (SPIA), and a delegation of five including professors from Colleges of Modern Agriculture, and Horticultural Gardening, joined Bennie Osburn, Mike Payne, Heather Johnson, Chris Brunner, and Jenny Chen on July 26 for an unofficial signing ceremony of an agreement between Suzhou Polytechnic Institute of Agriculture and UC Davis to collaborate on international development of the One Health for Food and Agriculture concept and exchange training opportunities.  

Jiangsu Vocational College of Agriculture and Forestry | June 28, 2019 | Davis, CA

Mike Payne, Sara Garcia, Chris Brunner and Jenny Chen welcomed a delegation from Jiangsu Vocational College of Agriculture and Forestry (JVCAF) to Davis on June 28.  WIFSS hosted the JVCAF delegation which included the Vice President of the College, Professor Cao Renyong, seated by Mike Payne in the photo. There was an unofficial signing ceremony of an agreement between Jiangsu and UC Davis to collaborate on international development of the One Health for Food and Agriculture concept and exchange training opportunities.  JVCAF is interested in expanding the friendship between JVCAF and UC Davis and sending JVCAF faculty to attend future WIFSS-hosted One Health conferences for vocational faculty.  Chris Brunner, Drs. Garcia and Payne, contributed to the presentation and discussion on WIFSS research, training, and outreach program.  Following the presentation and signing ceremony Chris escorted the delegation to the campus for a tour of the Veterinary Medical Teaching Hospital.    

TWITTER:  Promoting educational exchange and collaboration for One Health for #foodsafety and #foodsecurity between @UCDavis @ucdavisvetmed @wifss and Jiangsu Vocational College of Agriculture and Forestry. WIFSS team welcomes VP Renyong Cao and delegation to Davis.

Almond Board of California Food Safety Symposium | June 13, 2019 | Lodi, CA

Linda J. Harris  presented “Food Safety Across the Supply Chain – Keeping your Foot on the Gas" at the Almond Board of California Food Safety Symposium on June 13th in Lodi, CA. 
Moderator Joseph McIntyre leads a group discussion at the Good Agricultural Neighbors workshop in Stockton.

Good Ag Neighbor Workshops  | June 11 & 13, 2019 | Holtville & Stockton, CA

In order to facilitate dialogue between different sectors of California agriculture about cooperation to prevent future foodborne disease outbreaks, the California Department of Food and Agriculture (CDFA) partnered with the University of California-Davis to bring the livestock and produce communities together for a series of workshops. The workshops, titled California Good Ag Neighbors: The Produce-Livestock Interface Workshop, were designed for fruit and vegetable growers, livestock owners, and others interested in learning about how produce safety and livestock management practices can work jointly to promote food safety. The complete program (agenda, speaker bios, summary of results, recorded presentations) can be found here:

Over 100 registered participants attended the workshops in two California locations: the UCANR Desert Research and Extension Center in Holtville (June 11) and the Robert J Cabral Ag Center in Stockton (June 13). The workshops were organized by WCFS (Michele Jay-Russell, Principal Investigator), WIFSS (Michael Payne, Co-Principal Investigator), and UCCE (Brooke Latack, Livestock Advisor)  using Grant Program PAR-16-137 funding provided by FDA and administered through a cooperative agreement with the CDFA. We also received support from Western Growers Association and the California Beef Council. We also wish to acknowledge the tremendous work and talent of WIFSS staff members, Emily Kunz and Gregory Wlasiuk, in providing website and videography support.

Webinar Series: Overlaps in Food Quality Assurance and Food Safety Programs | June 11, 18, 25, & July 2, 2019

Erin DiCaprio, Linda J. Harris, and Luxin Wang offered a series of four free webinars titled “Overlaps in Food Quality Assurance and Food Safety Programs" to approximately 20 people per webinar during June & July. The four webinars included (1) Overview of food quality assurance and food safety programs, (2) Tools for quality control and control charts, (3) Microbiological testing and standards, and (4) Environmental monitoring programs. They plan to re-offer the series in the fall of 2019 and to record them as well.  Webinar information page:
Maeli Melotto presenting on the genetic components associated with human pathogenic colonization of lettuce.

Breeding Crops for Enhanced Food Safety | June 5-6, 2019 | Davis, CA

On June 5-6, 2019, UC Davis hosted the first workshop on Breeding Crops for Enhanced Food Safety to identify knowledge gaps and research priorities in this emerging field. The workshop was organized by Maeli Melotto (Chair) from the Department of Plant Sciences, Michele Jay-Russell (Co-Chair) from WCFS, and Allen Van Deynze (Co-Chair) from the Plant Breeding Center, with funding provided by USDA-NIFA. There were 65 participants from a diverse range of backgrounds in government, academia, and industry including representatives from USDA-NIFA. The presentations focused on topics such as applying host plant resistance to maize, the genetic components associated with human pathogenic colonization of lettuce, and the food safety risks in crop production systems. Jay-Russell presented an overview of produce food safety in the first session addressing the topic of Regulatory and Research Perspectives in Crop Safety: “The problem of in-field microbial contamination of fresh produce by zoonotic pathogens: Low-probability high-consequence human foodborne disease events.” Abstracts can be found here:

Additionally, SeedWorld and Germination magazines (>10,000 subscribers) published podcasts and articles to disseminate the workshop outcomes: and The scientific journals Frontiers in Microbiology and Frontiers in Plant Science have selected “Breeding Crops for Enhanced Food Safety” as a research topic and articles are being solicited:

Participants discussing lectures in a breakout session.

Produce growers get new ammunition in the battle against outbreaks | July 22, 2019

July 22, 2019 - Virginia Gewin wrote an article published in The Washington Post exploring emerging technologies for postharvest produce food safety. In response to a question about a “kill step,” WCFS’ Michele Jay-Russell is quoted, “You can roast almonds or pasteurize milk to kill bacteria, but spinach washes aren’t necessarily enough to eliminate every pathogen coming out of the field,” Read more:


Frontiers in Sustainable Food Systems Call for Papers: Deadline Extended to December 20, 2019

Frontiers in Sustainable Food Systems (Agro-Food Safety) invites authors to contribute to a Special Topic Issue: Conflicts and Compromises between Food Safety Policies and Environmental Sustainability. For more information and to submit a manuscript click here.
Antaki-Zukoski, E.M., X. Li, P.A. Pesavento, J.M. Adaska, B.A. Byrne, T.H.B. Nguyen, B.R. Hoar, M.T. Jay-Russell, E.R. Atwill. 2019. The effect of Cryptosporidium parvum co-infection on the duration of Escherichia coli O157:H7 fecal shedding in experimentally inoculated pigs. Jacobs Journal of Veterinary Science and Research 2019; 6(3): 050.

Baker, C.A., J. De, B. Bertoldi, L. Dunn, T. Chapin, M. Jay-Russell, M.D. Danyluk, and K.A. Schneider. 2019. Prevalence and concentration of stx+ E. coli and E. coli O157 in bovine manure from Florida farms. PLoS ONE 14(5): e0217445.
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