Nevada dairy cattle infected with a new bird flu strain, Type A H5N1 D1.1, raising concerns of multiple transmission channels.

A new strain of bird flu has infected dairy cows in Nevada, marking the second time the virus has jumped from birds to cattle. This latest infection — reported by the U.S. Department of Agriculture (USDA) Wednesday — involves a strain of H5N1,

A new strain of bird flu has been detected in US dairy cattle, raising concerns about its potential transmission and impact on livestock and public health. The USDA confirmed that highly pathogenic avian influenza (HPAI) H5N1,

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