have detected a case of highly pathogenic avian influenza in a commercial layer flock in O’Brien County in northwestern Iowa.

While touring Sioux, O'Brien, Clay, Palo Alto, Hancock, Cerro Gordo, Floyd, Chickasaw, and Fayette counties, I was struck by ...

The total number of birds affected this year in Iowa is about 700,000 ... A commercial flock of about 240,000 egg-laying chickens in O'Brien County Jan. 6: A backyard flock of about 60 ducks ...