Bird Flu Is Spreading in Alarming New Ways
by David Cox from on (#6M0T2)
H5N1 has infected cattle across the US and jumped from a mammal to a human for the first time. Experts fear it may someday evolve to spread among humans.H5N1 has infected cattle across the US and jumped from a mammal to a human for the first time. Experts fear it may someday evolve to spread among humans.