Avian Flu spreads to cows, raising concerns about cross-species transmission

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The Avian Flu, commonly known as Bird Flu, initially thought to be a virus exclusive to birds, has now made a worrying leap to cows, infecting several herds in the U.S. This development has sparked fears of cross-species transmission, with concerns that the virus could potentially infect other mammals, including pigs, or even humans. Joel Senick has the details.