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Abstract: Shortening Duration of Swine Exhibitions to Reduce Risk for Zoonotic Transmission of Influenza A Virus

Abstract: Shortening Duration of Swine Exhibitions to Reduce Risk for Zoonotic Transmission of Influenza A Virus

Reducing zoonotic influenza A virus (IAV) risk in the United States necessitates mitigation of IAV in exhibition swine. We evaluated the effectiveness of shortening swine exhibitions to <72 hours to reduce IAV risk. We longitudinally sampled every pig daily for the full duration of 16 county fairs during 2014-2015 (39,768 nasal wipes from 6,768 pigs). In addition, we estimated IAV prevalence at 195 fairs during 2018-2019 to test the hypothesis that <72-hour swine exhibitions would have lower IAV prevalence. In both studies, we found that shortening duration drastically reduces IAV prevalence in exhibition swine at county fairs. Reduction of viral load in the barn within a county fair is critical to reduce the risk for interspecies IAV transmission and pandemic potential. Therefore, we encourage fair organizers to shorten swine shows to protect the health of both animals and humans.

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Next Mile Ep 1: Navigating Disease Prevention

Video: Next Mile Ep 1: Navigating Disease Prevention

The Next Mile, host Dr. Meredith Petersen, Director of Swine Health at the National Pork Board, sits down with Dr. Cara Haden, Director of Animal Welfare and Biosecurity at Pipestone, to unpack the National Swine Health Strategy and what it means for producers across the country.

Meredith walks through how the strategy came together: a producer-led effort launched in March 2025 in response to input gathered at the National Pork Industry Forum, built around two core goals, keeping foreign and emerging diseases out of the U.S. herd and reducing the impact of domestic diseases already here, including long-term elimination targets for PRRSV and PEDV.

Cara then brings the conversation down to the farm level, sharing how Pipestone scores biosecurity across seven key areas: air, feed, water, people, supplies, trucks and pigs, plus everything within the farm perimeter. She and Meredith dig into why farm leadership and daily culture, not just protocols on paper, ultimately determine whether biosecurity efforts stick.

Whether you're a producer, veterinarian, or anyone invested in herd health, this episode offers a grounded look at where the industry is headed and what everyday habits make the biggest difference.