The Wayne County case involves a backyard poultry flock, the press release said. That case was confirmed after an investigation by the Michigan Department of Agriculture and Rural Development and the Michigan State University Veterinary Diagnostic Library.

For the first time, birds in a Wayne County backyard flock have been sickened by the highly pathogenic H5N1 avian influenza virus, MDARD reported.

Following confirmation of highly pathogenic avian influenza (HPAI), commonly known as bird flu, more than 100 chickens, geese, ducks and other birds at a farm in Waterford Township were culled. The birds at Hess-Hathaway Park tested positive last week according to the Michigan Department of Agriculture and Urban Development (MDARD),