Iowa State University Examines Truck Washing and Decontamination

Mar 17, 2025

Research conducted by Iowa State University suggests swine producers and transporters can reduce truck washing and decontamination costs through the strategic scheduling of truck washing.
Iowa State University, with funding provided through the Swine Health Information Center Wean-to-Harvest Biosecurity Research Program in partnership with the Foundation for Food and Agriculture Research and Pork Checkoff, used computer modeling to determine how different levels of swine transport trailer washing impact the spread of porcine epidemic diarrhea virus.
SHIC Associate Director Dr. Lisa Becton says the study found increasing the decontamination rate significantly reduces PED spread but it's not always economically plausible to wash 100 percent of the trailers 100 percent of the time.

Quote-Dr. Lisa Becton-Swine Health Information Center:
This modeling really does show the impact of network connectivity between sites, between systems and even in different geographic regions.
While it does look at different scenarios, this information can help both production managers and transportation managers and their veterinarians assess what are the risks in their particular area and then try to understand that it may not be necessary to wash 100 percent of the vehicles all of the time and still be able to take advantage of reduction in disease risk.

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Video: Five Confirmed New World Screwworm Cases Raise Alarm for Livestock and Pet Owners

Pat Hoffmann, Swine Technical Consultant at Elanco Animal Health tells us about the impact of New World Screwworm. The emergence of New World screwworm in the U.S. creates a threat for veterinarians, livestock producers and pet owners that has not been seen north of the Florida Keys since the fly was eradicated from the United States more than 50 years ago. New World screwworm (Cochliomyia hominivorax) larvae feed on living tissue and can affect a wide range of warm-blooded animals, including livestock, companion animals, wildlife, and even humans.
“New World screwworm could have a devastating impact on animal health, welfare, and producer livelihoods,” said Jeff Simmons, President and CEO, Elanco Animal Health. “We want to thank the FDA, EPA and USDA, for all their work to prepare for this threat. We’re committed to supporting our customers during this challenging time by delivering innovation, scientific expertise, and available resources to help treat New World screwworm and support the health and well-being of animals.”
Elanco is working alongside the U.S. animal health industry to help them fight against this parasite, offering a portfolio of options for pets and livestock that can help treat New World screwworm larvae infestations.