Tuesday, June 17, 2025

Mississippi H7N9 commercial flock is the first confirmed in U.S. since 2017

By David B. Strickland - Poultry Times Editor dstrickland@poultrytimes.com

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JACKSON, Miss. — The first confirmed case of H7N9 highly pathogenic avian influenza in several years was confirmed in a Mississippi broiler breeder flock on March 12.

USDA’s Animal and Plant Health Inspection Service reports that low pathogenicity H7 has been found in wild birds this year, but this case, in Noxubee County, Miss., consisting of 47,700 birds, is the first H7 high path case in a commercial flock in the United States since 2017.

The Mississippi Board of Animal Health notes that the flock was depopulated to prevent spread, and that none of the birds from the flock. . .

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