Bird flu virus circulated in cows for four months before outbreak confirmed by USDA, analysis shows
Thursday, May 02, 2024 03:18 PM
As agricultural authorities and epidemiologists try to get their arms around the scope of the latest confounding chapter in the decades-long story of the H5N1 avian influenza virus — its jump into U.S. herds of dairy cattle — they’re turning to the genetic breadcrumbs the virus leaves behind in the animals’ nose, lungs, and, primarily, milk. Read more.