4 dairy herds in Nevada recently diagnosed with #H5N1 #birdflu were infected with a different version of the virus than has been spreading in cows elsewhere. Evidence of a second (at a minimum) spillover points to the challenge of stopping spread, experts say. https://www.statnews.com/2025/02/05/usda-nevada-herds-different-bird-flu-strain-milk-testing/
USDA milk testing shows different strain of H5N1 bird flu in Nevada dairy herds
The strain, which has circulated in wild birds and led to the death of a Louisiana patient last month, makes prospects for containment in cows appear dim.Helen Branswell (STAT)
