FDA Partners with the University of Arizona, Wellton-Mohawk Irrigation and Drainage District, and Yuma Area Leafy Greens Stakeholders to Enhance Food Safety

Sep 27, 2019 | Michelle Shapiro

The U.S. Food and Drug Administration has launched a new initiative with support from the Arizona Department of Agriculture, and in conjunction with the University of Arizona Cooperative Extension, the Wellton-Mohawk Irrigation and Drainage District (WMIDD), and members of the Yuma area leafy greens industry to better understand the ecology of human pathogens in the environment in the Yuma agricultural region. This initiative will be a multi-year study which will focus on how these pathogens survive, move and possibly contaminate produce prior to harvest.

The launch of this initiative follows the largest E.coli O157:H7 outbreak in the United States since 2006. The outbreak, which was linked to romaine lettuce grown in the Yuma region, began in the spring of 2018 and resulted in 210 reported illnesses from 36 states, 96 hospitalizations, 27 cases of hemolytic uremic syndrome (HUS) and five deaths. In response, FDA led an Environmental Assessment (EA) of the Yuma produce growing region in collaboration with Centers for Disease Control and Prevention (CDC), the Arizona Department of Agriculture (AZDA), WMIDD, and state partners from June through August 2018.

While the EA was useful in narrowing the scope of the outbreak, many questions remain unanswered regarding the specific origin of the pathogen, the environmental distribution, and potential reservoirs for the outbreak strain. The findings made clear that further collaboration among leafy greens stakeholders and FDA is needed to better understand potential sources of microbial contamination, the prevalence and persistence of human pathogens in the ecosystem near growing areas, and the best management practices to prevent future outbreaks from occurring.

Throughout this initiative, FDA will work in partnership with water quality, food safety, and agricultural experts from the University of Arizona Cooperative Extension, representatives from the WMIDD, and members of the Yuma area leafy greens industry. Research teams will be collecting and examining samples from the environment such as surface waters, canal sediment, and dust. The team will also be collecting scat samples to assess the impact that animal intrusion and native wildlife may have on the growing environment.

Shiga Toxin-Producing E.coli (STEC), of which E.coli O157:H7 is a strain, causes roughly 170,000 people to become ill every year. This generally happens through the consumption of contaminated food or water, or close contact with STEC-infected animals. Between 2009 and 2017, FDA and our partners at CDC identified 28 foodborne STEC outbreaks with known or suspected links to leafy greens. Like a lot of fresh produce, leafy greens are often eaten raw without a kill-step, such as cooking, that could eliminate pathogens that may be present.

The Yuma agricultural region, which encompasses Yuma County in Arizona and the Imperial Valley in California, is a leader in the production of leafy greens in the United States. The findings from this study will contribute new knowledge on how various environmental factors may influence bacterial persistence and distribution in this region, and how those factors may impact the risk of this commodity becoming contaminated. Results from this collaboration will lead to improved practices to prevent or mitigate food safety risks, and ultimately enhance the safety of produce grown in the region.

For More Information


636530147572900000

About Michelle Shapiro

Michelle Shapiro was formerly a communication specialist for the Environmental Health & Disability team at NACCHO.

More posts by Michelle Shapiro

Related Posts

Swimming Pool Instructor
  • Model Aquatic Health Code Water Quality

Implementing the Model Aquatic Health Code at the Local...

A full recount of Colorado’s Pueblo County health department’s MAHC adoption...

May 23, 2024 | Rebecca Rainey

Implementing the Model Aquatic Health Code at the Local...

IMG 7231
  • Tools & Resources Vector Control

Hurricane Crisis Mosquito Control Workshop: Preparing...

The workshop enhanced mosquito surveillance and control program capacity for...

May 15, 2024 | Christine Phan

Hurricane Crisis Mosquito Control Workshop: Preparing...

Tick vector i Stock 958222134
  • Tools & Resources Community Health Healthy Living & Prevention Vector Control

In the Trenches: Tick Assessment and Resources

List of educational resources for local health departments to use during May’s...

May 13, 2024 | Christine Phan

In the Trenches: Tick Assessment and Resources

Female Swimmer Wearing Hat And Goggles Training In Swimming Pool stock photo
  • Webinar Community Health Model Aquatic Health Code

MAHC Network Webinar: Creativity, Compliance, and...

NACCHO is excited to announce a webinar during Healthy and Safe Swimming Week...

May 10, 2024 | Rebecca Rainey

MAHC Network Webinar: Creativity, Compliance, and...

Louisiana levee
  • Climate Change

CDC Foundation Funding Opportunity: Climate and Health...

16 grants of up to $100,000 to eight CBOs in the Gulf South and eight CBOs in...

May 03, 2024 | Anu Varma

CDC Foundation Funding Opportunity: Climate and Health...

Extreme Heat web
  • Tools & Resources

Nation’s First Health-Based Heat Forecast and Clinical...

New resources offer proactive steps people can take to protect themselves from...

Apr 22, 2024

Nation’s First Health-Based Heat Forecast and Clinical...

  • Tools & Resources Communications & Public Relations Public Health and Homelessness

NACCHO Social Media Strategy - National Public Health...

National Public Health Week (NPHW) was from April 1 to April 7, 2024.

Apr 11, 2024 | Emma James

NACCHO Social Media Strategy - National Public Health...

Glass Water
  • Hazards & Health Effects Water Quality Water, Sanitation, and Hygiene

EPA Sets Precedent By Legally Enforcing Limits on...

The agency makes available $1 billion in funding to states and territories to...

Apr 10, 2024 | Anu Varma

EPA Sets Precedent By Legally Enforcing Limits on...

Stakeholder Conference Call on the FDA Integrated Food...

You’re invited to join the call on April 2 to hear more.

Mar 25, 2024

Stakeholder Conference Call on the FDA Integrated Food...

Back to Top