Escherichia coli O157:H7--Discerning Facts from Fiction: An Integrated Research and Extension Project for Multiple...

Area of Science:

• Food Safety
• Veterinary Epidemiology
• Microbiology

Background:

• Shiga-toxin-producing Escherichia coli (STEC) O157:H7 (EcO157) epidemiology in cattle is complex.
• Misinformation regarding pre-harvest control of EcO157 is common.
• Effective communication strategies are needed to disseminate evidence-based information.

Purpose of the Study:

• Identify and address perpetuated misinformation about EcO157.
• Educate diverse audiences on evidence-based risks and pre-harvest control of EcO157.
• Improve understanding of food safety policy creation and effective risk communication.

Main Methods:

• Environmental scan of internet searches to identify educational themes.
• Literature review of pre-harvest control measures.
• Development and delivery of educational materials including fact sheets, website, webinars, and conferences.

Main Results:

• Educational interventions reached over 315 participants globally and US government employees.
• Participants reported increased confidence in understanding EcO157 epidemiology, pre-harvest control, and policy-making.
• Key knowledge gains include: no increased risk from grain-fed cattle, efficacious pre-harvest vaccination, and no effect of production systems on shedding.

Conclusions:

• Evidence-based education can effectively combat misinformation regarding EcO157 in cattle.
• Pre-harvest vaccination and production systems do not significantly impact EcO157 shedding rates.
• Targeted communication strategies are crucial for improving food safety practices and policy understanding.