Bird Flu Spreads in Cattle to Michigan and Idaho, With 2 Human Cases Also Confirmed
Highly pathogenic avian influenza has been found on dairy herds in Michigan and Idaho, indicating further spread to other U.S. states. At the same time, The Washington Post has reported that a person in Texas is being treated for the illness after coming in contact with dairy cows — the second such case in a human.The National Veterinary Services Laboratories confirmed the presence of bird flu in the Michigan herd on Friday after the herd had recently brought in cows from Texas. The strain confirmed was similar to those found in Texas and Kansas dairies.
Presumptive positive test results have also been received for additional herds in New Mexico, Idaho, and Texas.
The U.S. Department of Agriculture will share updates if those tests are confirmed positive by the national laboratories. “Federal and state agencies continue to conduct additional testing in swabs from sick animals and unpasteurized clinical milk samples from sick animals, as well as viral genome sequencing, to assess whether HPAI or another unrelated illness may be underlying any symptoms,” the USDA wrote in a news release on Friday.
It is believed that the strain confirmed in Texas and Kansas herds was introduced by wild birds (H5N1, Eurasian lineage goose/Guangdong clade 2.3.4.4b). Initial testing has not found changes to the virus that would make it more transmissible to humans. While cases among humans in direct contact with infected animals are possible, this indicates that the current risk to the public remains low.
The spread of symptoms within the Michigan cattle herd suggests that HPAI transmission among cattle is possible. The USDA and its partners closely monitor the situation and have advised veterinarians and producers to adhere to strict biosecurity measures.
This includes testing animals before any necessary movements, reducing animal transfers, and isolating sick cattle from the herd. Among the affected dairies, the symptomatic animals have recovered after being isolated, with minimal to no associated deaths reported.
We're all gona die!!
