Avian flu confirmed in dairy herds across 3 more West Michigan counties

GRAND RAPIDS, Mich. (WOOD) — The Michigan Department of Agriculture and Rural Development has confirmed three more outbreaks of highly pathogenic avian influenza, also known as bird flu, in dairy herds.

MDARD announced the year’s first case on March 29 with an infection in Montcalm County. Now, outbreaks have been confirmed in Ionia, Isabella and Ottawa counties.

The agency did not identify which farms are dealing with the outbreak but classified them all as commercial farms, two of which have herds of at least 500 animals.

“What is happening with HPAI in Michigan mirrors what is happening in states across the country,” MDARD Director Dr. Tim Boring said in a press briefing. “This virus does not stop at county or state lines, which is why we must all be on high alert. This news is unfortunate and upsetting for our poultry and dairy farming families and communities.”

Bird flu found at commercial poultry farm in Ionia County

Multiple federal agencies, including the Food and Drug Administration, the Centers for Disease and Prevention and the U.S. Department of Agriculture, say the commercial milk supply is safe because of pasteurization and federal animal health requirements.

“If animals are sick, they are not allowed to have that milk go into the bulk tank for sale. That milk is pulled,” Michigan State Veterinarian Dr. Nora Wineland said. “The animals are not quarantined. We ask the herds to restrict movements and only move animals if absolutely necessary to be moved.”

HPAI is a highly contagious virus that can spread from infected wild birds to other animals through an item exposed to the virus, like equipment, feed or even the clothes of the caretakers. In rare cases, humans can contract the virus.

A farm worker in Texas tested positive for HPAI last month, the second human case ever on record in the United States.

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The current HPAI outbreak, which sparked in February of 2022, has now affected more than 85 million birds nationwide, making it the worst outbreak of bird flu in American history. While HPAI is almost always fatal in birds, the mortality rate is considered low in cows.

Those who suspect avian flu in their domestic animals are asked to call MDARD immediately at 800.292.3939 during the day or 517.373.0440 after hours.

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