The H5N1 avian influenza virus has been spreading through US dairy cattle herds since March, affecting at least 16 states.
California officials have declared a state of emergency over the spread of bird flu, which is tearing through dairy cows in that state and causing sporadic illnesses in people in the U.S. That raises ...
US has confirmed the first case of severe bird flu (H5N1 avian flu) in the US, leading California to announce a state of ...