Highly pathogenic avian influenza continues to spread in Ohio, with five new commercial poultry flock infections there being reported by the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS). APHIS also reported a new instance of HPAI in Arizona.

The US Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) today confirmed more H5N1 avian flu detections in poultry from four states, including several in hard-hit Ohio.

The presence of highly pathogenic avian influenza (HPAI) was confirmed in 16 commercial poultry flocks in the United States over a two-day period.

According to the Ohio Department of Agriculture, there have been over 6,000,000 chickens and turkeys affected in a total 22 farms in Mercer and Darke Counties.

Avian influenza (HPAI) was detected in 1,432,000 chickens in Mercer County, , according to the USDA, just weeks after the Ohio Department of Agriculture confirmed the infection of 931,302 birds in

Both H5N9 and H5N1 were detected at the duck farm in Merced County, according to tests conducted by the US Department of Agriculture (USDA) National Veterinary Services Laboratory. The event began on November 23, with clinical signs that included increased deaths in the ducks.

The Ohio Department of Agriculture’s procedure is to quarantine the impacted facilities and to depopulate, or kill, the birds to prevent the disease from spreading.

Learn about the new H5N9 bird flu strain in the US, its impact on food safety and prices, plus expert advice on protecting yourself from avian influenza.

Highly pathogenic avian influenza H5N9 has been identified in U.S. poultry for the first time, after outbreak at a commercial duck farm in California.

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