Bird flu was probably circulating in dairy cows for at least four months before it was confirmed to be the highly pathogenic H5N1 virus, according to a new analysis of
The largest producer of fresh eggs in the U.S. said Tuesday it had temporarily halted production at a Texas plant after bird flu was found in chickens, and offi
Health officials in Texas and the U.S. Centers for Disease Control and Prevention are monitoring a second case of bird flu.Authorities say that the person worke