‘Bird flu’ detected in some Michigan cows
LANSING, Mich. (WLNS) — Officials have detected highly pathogenic avian influenza (HPAI), commonly known as “the bird flu,” in some Michigan cows.
The cows, part of a dairy herd in Montcalm County, came from a site in Texas that has been affected by avian influenza, the Michigan Department of Agriculture & Rural Development reported.
Officials said the cows did not show any sign of disease at the time they came from Texas to Michigan.
“This case does reflect a lot of what is already known about this virus—namely, that it is highly contagious, it continues to be primarily spread by wild birds and contact with infected animals, and mammals can contract the virus,” said State Veterinarian Dr. Nora Wineland.
The virus was confirmed in dairy cows in Texas and Kansas earlier this week, and has also affected cows in New Mexico.
Some goats in Minnesota were also recently diagnosed with the virus. It’s believed to be the first time the virus was found in U.S. livestock, The Associated Press reported.
HPAI is a very contagious virus that spreads directly through infected wild birds or animals, and indirectly through any item that has been exposed–equipment, feed, or the clothing and shoes of caretakers.
As for the risk to humans’ public health–the virus has not shown any sign of becoming transmissible between mammals, so the risk is very low.
“As more is learned, it is vitally important for producers to work with their veterinarian and isolate sick animals from others, minimize the number of visitors to their farms, prevent contact between their animals and wildlife, and continue to vigilantly monitor the health of their animals,” Wineland said.
If cattle producers notice decreased lactation, low appetite and/or other symptoms in their cows, they should contact their veterinarian.
The Food and Drug Administration and the Centers for Disease Control and Prevention have indicated that the commercial milk supply is safe to drink. This is because of federal health requirements and pasteurization, they say.
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