How is bird flu spread in cows? An experiment brings some “good news.”
Since scientists discovered that the flu was infecting American cows earlier this year, they have puzzled over how it spreads from animal to animal. An experiment in Kansas and Germany has shed light on the mystery.Scientists have found no evidence that the virus can spread as a respiratory infection. Juergen Richt, a virologist at Kansas State University who helped lead the research, said the findings suggest the virus is primarily infectious through contaminated milking machines.In an interview, Dr. Richt said the findings offer hope that the epidemic can be stopped before the virus evolves into a form that could spread easily among humans.“I think this is good news, that we can probably control it more easily than people thought,” Dr. said. Richt. “I hope we can now kick this thing in...