What is H5N9 and how is it different from H5N1? Scientists classify bird flu viruses by which kind of two key proteins are ...

The deaths of two snowy owls, one in RI and one in Massachusetts, has saddened bird watchers and left some wondering if they ...

A new strain of H5N9 bird flu was detected at a commercial duck operation in California's Merced County. All the ducks were ...

North Carolina egg and poultry producers are trying to prevent the spread of avian flu known as H5N1. Egg shortages caused by ...

A pandemic is not inevitable, scientists say. But the outbreak has passed worrisome milestones in recent weeks, including ...

The H5N9 strain of avian influenza is much more rare than the H5N1 which has been responsible for most of the reported human ...

The team found that animals that had the virus inoculated directly into their lungs became severely ill, whereas animals that ...

Bird flu infections around the U.S. have forced mass cullings and resulted in the deaths of zoo animals and pets ...

H5N9 is a rare subtype of the influenza A virus that can cause highly pathogenic avian influenza (HPAI), also known as bird ...

The United States has reported its first outbreak of H5N9 bird flu in poultry on a duck farm in California, the World ...

US officials are investigating the appearance of a strain of bird flu identified in the US for the first time, a worrying ...