H5N1 bird flu has now crossed into U.S. dairy cattle for the first time, and alarmingly, it did so through just one spillover from a wild bird. This single event, traced back to Texas in mid-to-late 2023, led to months of undetected cow-to-cow spread across multiple states. Genetic data show that the virus is adapting [...]from SciTechDaily https://ift.tt/BHa1Xjb
