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Avian influenza confirmed in Calhoun County, Iowa turkey flock

A new detection of highly pathogenic avian influenza has been confirmed in Iowa.

According to the Iowa Department of Agriculture and Land Stewardship, the disease was found in a commercial turkey flock in Calhoun County. The department tells Brownfield that approximately 42,000 turkeys were impacted, and the flock will be depopulated.

The detection is the state’s eighth case of avian influenza within domestic birds in 2025.