Symptoms can include coughing and sneezing, loss of appetite, diarrhea, declining egg production and fertility, and nervous ...

The infection spreads through respiratory droplets from coughing or sneezing by infected chickens. Even birds that recover from the disease can remain carriers, as can other chickens in the same ...

A teenager in Canada, hospitalized with the country's first case of the H5N1 bird flu, is in critical condition. Health officials report his condition ...