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New bird flu strain detected in US dairy cows

USA TODAY on MSN · 13h

New bird flu variant found in dairy cattle. Can H5N1 be transmitted to humans?

Until last week, all bird flu in dairy herds had been identified as the B3.13 variant, which was believed to have come from wild birds in late 2023 or early 2024. The USDA confirmed the virus's existence in the Nevada dairy cattle through milk sampling, the agency said.

New Bird Flu Strain Emerges In Nevada Dairy Cattle, Sparking Pandemic Concerns

A new variant of the H5N1 bird flu — the same one that led to the death of a Louisiana man — has for first the first time been found in infected U.S. dairy cattle.

A new type of bird flu has been found in dairy cows in Nevada

The strain of bird flu is distinct from what has previously been found in dairy cattle. The finding means the virus has again spilled over from birds to cows, and it raises some worrying questions.

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US dairy cows infected with 2nd form of bird flu for the 1st time: USDA

A second type of bird flu has been found in U.S. dairy cows for the first time, the U.S. Department of Agriculture (USDA) ...

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2nd form of bird flu detected in US cows

A branch of the H5N1 bird flu family tree that hadn't previously been seen in cattle has now been detected in dairy cows.

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