How is bird flu spread in cows? An experiment brings some “good news.”
Since scientists discovered earlier this year that the flu infects American cows, they have wondered how it spreads from one animal to another. An experiment in Kansas and Germany has shed some light on the mystery.Scientists have failed to find 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 via contaminated milking machines.In an interview, Dr. Richt said the findings raised hopes that the epidemic could be stopped before the virus evolved into a form that could spread easily among humans.“I think it's good news that we can most likely control it more easily than people thought,” Dr. Richt said. “Hopefully we can now kick t...