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Bird flu in humans hasn't officially been seen in U.S. in 3 months: "We just don't know why"
Health officials are making a renewed call for vigilance against bird flu​, but some experts are puzzling over why reports of ...
The U.S. hasn’t seen a human bird flu case in 3 months. Experts are wondering why
Health officials are making a renewed call for vigilance against bird flu, but some experts are puzzling over why reports of ...
MedPage Today on MSN14h
U.S. Hasn't Seen a Human Bird Flu Case in 3 Months. Experts Are Wondering Why.
During a call with U.S. doctors this month, one CDC official noted that there is a seasonality to bird flu: Cases peak in the ...