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 ...

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 ...

Health officials are making a renewed call for vigilance against bird flu, but some experts are puzzling over why reports of ...

The most recent infections confirmed by the Centers for Disease Control and Prevention were in early February.