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Avian Flu Swiftly Spreading Among U.S. Commercial Flocks

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Avian influenza has resurged, affecting 106 commercial flocks in 23 states, with significant losses reported in California, including 270,000 birds in Sonoma and up to 254,400 birds in two Stanislaus broiler operations. The total number of birds lost since 2022 has surged to 72.54 million, with Iowa and Ohio being the most impacted states.

The United State Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) attributes Highly Pathogenic Avian Influenza (HPAI) to influenza Type A virus, caused by various combinations of hemagglutinin and neuraminidase proteins. The Centers for Disease Control and Prevention (CDC) reports low human health risks, with only one infection and recovery in the U.S. So far, 1,012 flocks have been lost to avian flu, with 426 commercial flocks and 586 backyard flocks affected.

With the virus spreading and commercial flocks facing infections, efforts by APHIS and CDC to monitor and manage avian influenza are crucial. As of Dec. 11, the total number of affected flocks remains at 1,012, emphasizing the ongoing challenge in containing the outbreak.

Source: Center for Disease Control and Prevention

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