Another spillover of the H5N1 bird flu virus from wild birds to dairy cattle appears to have occurred, this time in Arizona.

Arizona agricultural officials say they now have the first detection of H5N1 avian influenza in milk produced by a dairy herd within the state.

A new study published Thursday by the Centers for Disease Control and Prevention shows that bird flu has silently spread from ...

CDC finds H5 bird flu antibodies in 3 veterinary practitioners, highlighting need for enhanced surveillance and safety protocols.

The report is the latest evidence that the outbreak in dairy herds is spreading undetected in cows, and the spillover into ...

Three dairy veterinarians, including one who worked only in states with no known bird flu outbreaks in cows, had recent, ...

Avian influenza (AI) continues to kill large numbers of migratory birds in eastern Pennsylvania as state officials have looked to slow the virus through organized shooting efforts. The Game ...

We might have better T cell responses against H1N1 than we thought. New pandemic strains of influenza virus typically are more virulent than those that have been circulating longer, presumably ...

Background Human infection with influenza A(H1N1) 2009 was first identified in the United States on 15 April 2009 and on 11 June 2009, WHO declared that the rapidly spreading swine-origin ...

Avian influenza viruses pose a growing threat, with the potential to adapt to humans and trigger future pandemics, according to a new report by the European Centre for Disease Prevention and ...

A flock of B.C. ostriches ordered killed after avian flu was detected on their farm have been granted a stay of execution by a Federal Court judge. In a ruling shared Friday afternoon, Justice ...

Avian influenza, or “bird flu,” is a disease caused by influenza A viruses that spread widely among wild birds, and can cause outbreaks in commercial and backyard poultry flocks. Though there are many ...