The first major global review of bird flu in cats reveals an emerging threat of a potential human pandemic. Spring is here, ...

Brazil, the world's largest poultry exporter, has confirmed its first outbreak of highly pathogenic avian influenza on a ...

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

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