A virologist explains that why this probably isn’t the big one — but that it’s a sign of bad things happening with the virus.

Amid a "concerning" new mutation in bird flu that may indicate the virus could begin to more easily infect humans, what are ...

The call to authorize a vaccine comes after the CDC announced that a person in Louisiana was hospitalized with the country's first known case of severe illness caused by the virus earlier this month.

while one dead bird does not reach the threshold of suspicion for avian influenza, birds that are not usually found in the Falkland Islands are routinely swabbed for surveillance. Unfortunately ...