Brazil began a 28-day bird flu observation period on Thursday which it hopes will show the country's chicken farms are free ...

By Ana Mano and Sybille de La Hamaide SAO PAULO/PARIS (Reuters) -Preliminary test results indicate a commercial chicken farm ...

BRASILIA (Reuters) -Poultry trade bans triggered by a bird flu outbreak in Brazil may weigh on domestic chicken prices, ...

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

Brazilian authorities hope to determine by Tuesday whether a confirmed outbreak of highly pathogenic avian influenza among ...

Brazil, the world's largest chicken exporter, on Friday reported its first case of highly pathogenic avian influenza - also ...

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 ...

Mexico, Chile and Uruguay have halted poultry imports from Brazil after the country confirmed its first bird flu outbreak on ...

How dangerous is it? Where did it come from? H5N1 influenza’s origins stretch back to the 1990s, and key events paved the way ...

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