Global outbreak of H5N1 avian influenza virus raises concerns about human transmission and pandemic potential, requiring ...

Efforts to contain the virus are falling short. A teenager in Canada is in critical condition after an unexplained infection.

Why now: With reservoirs of virus persisting in dairy cattle, poultry and wild birds, there are ample opportunities for ...

Canada's first H5N1 bird flu case in a teenager has raised concerns over potential mutations enabling human infection. With ...