<body><div><figure><img src="https://img.particlenews.com/image.php?type=thumbnail_580x000&amp;url=399Ur5_1GtJa38Q00" alt="https://img.particlenews.com/image.php?url=399Ur5_1GtJa38Q00" width="2048" height="1365" ></figure>Submitted By: Ashley Bigge, Ph.D., Penn State Extension, Poultry EducatorWild birds are migrating south for the winter, and cases of highly pathogenic avian influenza (HPAI) have been reported in the United States. The United States Department of Agriculture (USDA) maintains lists of HPAI confirmations in various species.In the last 30 days, there have been 12 commercial and 23 backyard poultry cases across 17 states from the West Coast through the Midwest. California, Illinois, and Minnesota have been the most affected during this time. There have also been 48 cases of HPAI confirmed in dairy cattle, with most of these cases occurring in Washington. Other dairy cases have been confirmed in Colorado, Kansas, Texas, and Indiana. More information can be found on the USDA’s website: <a href="https://www.aphis.usda.gov/h5n1-hpai#detections-hpai">https://www.aphis.usda.gov/h5n1-hpai#detections-hpai</a>.Note that as of this update, no cases have been confirmed in Pennsylvania poultry flocks or dairy operations. However, HPAI has been confirmed in wild birds throughout the state. Maintaining recommended biosecurity practices will reduce the risk of HPAI and other diseases. The state veterinarian is also recommending that poultry be kept indoors.Penn State Extension can assist Pennsylvania producers with biosecurity education and plan development. Contact your county’s Penn State Extension office to be connected with a poultry or dairy educator for assistance. More information on HPAI can be found on the Penn State Extension website: <a href="https://extension.psu.edu/avian-influenza">https://extension.psu.edu/avian-influenza</a>.</div></body>

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Submitted By: Ashley Bigge, Ph.D., Penn State Extension, Poultry Educator. Wild birds are migrating south for the winter, and cases of highly pathogenic avian influenza (HPAI) have been reported in the United States. The United States Department of Agriculture (USDA) maintains lists of HPAI confirmations in various species. In the...

HPAI Update: November 4, 2026

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Submitted By: Ashley Bigge, Ph.D., Penn State Extension, Poultry Educator. Wild birds are migrating south for the winter, and cases of highly pathogenic av

HPAI Update: November 4, 2026

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