USDA Confirms Highly Pathogenic Avian Influenza in a Dairy Herd in Indiana

Nov 03, 2026

The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) National Veterinary Services Laboratories (NVSL) confirmed via PCR (polymerase chain reaction) detection of highly pathogenic avian influenza (HPAI) H5N1 genotype B3.13 in a dairy cattle herd in Indiana. This detection was a result of routine National Milk Testing Strategy testing, not pre-movement surveillance.

This marks the first reported case of HPAI in cattle in Indiana. While dairy cattle in a total of 21 states have been infected since the start of the outbreak in March 2024, APHIS has seen cases in previously unaffected states this year. APHIS is working closely with the Indiana State Board of Animal Health to conduct additional on-farm investigations, diagnostic testing, and epidemiological data collection to better understand the detection and prevent further disease spread.

Source : usda.gov

Video: Evidence-Based PRRS Elimination Methods - Dr. Brent Pepin

In this episode of The Swine it Podcast Show, Dr. Brent Pepin, Director of Swine Health at the National Pork Board, explains how a systematic review of porcine reproductive and respiratory syndrome virus elimination methods is helping shape future herd health strategies. He discusses evidence-based farm and regional approaches, research gaps, and practical guidance to support informed decision-making across the swine industry. Listen now on all major platforms!

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"Disease status sharing gives producers the opportunity to make real-time decisions that reduce PRRS prevalence and protect regions from new exposure."

Meet the guest: Dr. Brent Pepin / brent-pepin-dvm-ms-7988066b is Director of Swine Health at the National Pork Board. After earning his DVM and M.S. from Iowa State University, he built extensive experience in swine veterinary practice, research, and herd health management. His current work focuses on disease control, traceability, and improving herd health across the U.S. swine industry. Listen to Brent Pepin on The Swine it Podcast Show, available on all major platforms.