CDC confirms Nevada dairy worker infected with different bird flu strain
A strain of bird flu spreading among dairy cows in Nevada has infected a dairy worker in the state, the Centers for Disease Control and Prevention said Monday.
A strain of bird flu spreading among dairy cows in Nevada has infected a dairy worker in the state, the Centers for Disease Control and Prevention said Monday.
The patient, who’d been working with sick cows, was found to have a strain of bird flu called D1.1, which has long been circulating in wild birds. It’s different from the strain of the virus that’s caused the majority of human infections in the U.S., called B3.13.
D1.1 has a mutation that could make the virus spread more easily in mammals.
It was found in dairy cows for the first time last month — also in Nevada — through the National Milk Testing Strategy that monitors for bird flu in dairy cows by testing their milk.
It marks the second time a strain of the bird flu virus has “spilled over” from birds to cows.
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