Preexisting immunity to the 2009 H1N1 influenza virus provided near-complete protection against severe H5N1 disease and ...

The H5N1 bird flu virus has historically extracted a heavy toll when it infects humans, with nearly half of confirmed cases ...

The fatality rate for H5N1 highly pathogenic avian influenza in humans has historically been high, with more than half of ...

Influenza viruses like bird flu can mix and match their genomes, and this has played a role in at least three of the last ...

The H5N1 avian flu is circulating in cows and other mammals. Whether it will make a permanent leap to humans is another ...

H5N1 avian influenza has long been a concerning virus. Since its discovery in 1996 in waterfowl, bird flu has occasionally ...

Influenza viruses are shifty entities. A seemingly ingenious and sneaky way for viruses to make these leaps is by swapping ...

As bird flu evolves, keeping it out of farm flocks is getting harder New versions of the H5N1 virus are increasingly adept at spreading ...

The CDC ends its emergency response to H5N1 bird flu after recording 70 human cases and one death nationally, even as experts note seasonal patterns may increase fall cases.  Read More ...

The Centers for Disease Control and Prevention (CDC) has ended its emergency response to the H5N1 avian flu. A spokesperson for the Department of Health and Human Services (HHS) said that the emerg… ...

The agency’s H5N1 bird flu emergency response was activated in April 2024, and since then, there have been 70 cases of H5N1 bird flu found in humans, CDC data shows.

CDC announces the end of its H5N1 bird flu emergency response as cases drop ...