H5N1 dairy cow study finds sustained milk production drop, extensive transmission across herd Lisa Schnirring, March 13, 2025 Scientists who examined the impact of an H5N1 avian flu outbreak in an Ohio dairy herd that had about 3,900 cows found a milk production drop in clinically affected cows that lasted 60 days and extensive asymptomatic […]
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Trump administration takes aim at bird flu. For now, the cattle will have to wait By Megan Molteni and Helen Branswell, Feb. 26, 2025 The U.S. Department of Agriculture announced Wednesday an additional $1 billion to help the nation’s poultry industry combat an accelerating outbreak of H5N1 avian influenza, which has devastated farmers and driven the price of eggs to record […]
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Bird flu found in Arizona milk suggests another spillover from birds to cows By Helen Branswell, February 14, 2025 It appears that there may have been another spillover of H5N1 bird flu virus from wild birds into dairy cattle. The Arizona Department of Agriculture announced Friday that it had found the virus in milk from […]
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APHIS Identifies Third HPAI Spillover in Dairy Cattle February 14, 2025 On February 13, 2025, the USDA Animal and Plant Health Inspection Service (APHIS) National Veterinary Services Laboratories (NVSL) confirmed by whole genome sequence a detection of highly pathogenic avian influenza (HPAI) H5N1 clade 2.3.4.4b, genotype D1.1 in dairy cattle in Arizona. This confirmation was […]
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New strain of bird flu is detected in a Nevada dairy worker, CDC says By Mike Stobbe and Jonel Aleccia, February 10, 2025 NEW YORK (AP) — A dairy worker in Nevada was infected with a new type of bird flu that’s different from the version that has been spreading in U.S. herds since last year, federal […]
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Avian flu infects 2 more California dairy workers as CDC confirms Wisconsin case December 20, 2024, by Lisa Schnirring The California Department of Public Health (CDPH) reported two more H5 avian flu infections, both in dairy workers, raising the state’s total to 36. Also, the Centers for Disease Control and Prevention (CDC) confirmed a presumptive case […]
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Rapid spread of H5N1 bird flu through California dairy herds suggests unknown paths of transmission December 20, 2024, by Megan Molteni In the ongoing outbreak of H5N1 bird flu among the nation’s dairy cattle, federal officials have consistently expressed confidence that they know enough about how the virus is spreading to put a stop to it. But […]
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United States Department of Agriculture (USDA) Announces New Federal Order, Begins National Milk Testing Strategy to Address H5N1 in Dairy Herds December 6, 2024 New Federal Order Will Require National Milk Testing and Support State Officials and Dairy Regulators; Builds on Actions to Protect Farms, Farmworkers and Communities from H5N1 Avian Influenza. Read the full […]
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Over 20 confirmed bird flu cases in California as efforts continue to stop the spread at dairies By Kassandra Gutierrez, November 14, 2024 The state of California has seen a total of 22 confirmed cases of Bird Flu in humans since the first positive test this summer. Western United Dairies oversees over 90% of dairies […]
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H5N1 avian flu isolate from dairy worker is transmissible, lethal in animals By Lisa Schnirring, October 28, 2024 In experiments designed to learn more about the threat from the H5N1 avian flu virus spreading from cows to people, researchers found that an isolate from a sick dairy worker may be capable of replicating in human […]
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