Pathogens Beyond the Animal: Environmental Drivers of Disease in Livestock Systems

This webinar examines the role of the environment in livestock disease risk and surveillance. Presentations will explore the association between manure handling activities and PRRSV outbreaks in wean-to-market swine, as well as the use of environmental sampling to better understand pathogen distribution on HPAIv-infected egg layer farms. Together, these studies highlight how environmental data can inform biosecurity practices, disease monitoring, and future research applications in livestock production systems.  This presentation was originally broadcast on February 20, 2026.

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Characterizing Environmental Samples from Two Highly Pathogenic Avian Influenza Virus-Infected Premises

Mickey Leonard, University of Minnesota (14:20)

Evaluation of a recirculating ventilation system to reduce dust and bioaerosol in swine production

Matthew Nonnenmann, University of Nebraska (13:22)

Evaluating PRRS Outbreaks During Manure Pumping and Spreading Events in Swine Operations

Ana Paula Serafini Poeta Silva, Iowa State University (20:02)

Questions from the Audience

All presenters (21:58)

More Information

Continuing Education Units

Certified Crop Advisers (CCA, CPAg, or CPSS)

View the archive and take the quiz (not available yet). Visit the CCA continuing education page for additional CEU opportunities.

American Registry of Professional Animal Scientists (ARPAS)

View the archive and report your attendance to ARPAS via their website. Visit the ARPAS continuing education page for additional CEU opportunities.