New versions of the H5N1 virus are increasingly adept at spreading. Suggestions to either let it rip in poultry or vaccinate the birds could backfire.

Is the flu vaccine less effective than hoped? Preliminary Cleveland Clinic research reveals a surprising result among vaccinated healthcare workers, but doctors caution about limitations.

One year ago, the first bird flu infection in a human in the United States was reported in a Texas dairy worker. There have been at least 70 cases since then.

Current antivirals likely less effective against severe infection caused by bird flu virus in cows' milk Scientists found that frequently used flu antivirals do not work well against the H5N1 ...

The third bird flu infection detected this year was also in Buena Vista County in mid-February where 26,730 turkeys were destroyed. The fourth detection was in Sac County in northwestern Iowa on ...

During one of the most active flu seasons in recent memory, infectious disease experts at Fred Hutch Cancer Center say many of the public health lessons learned during the COVID-19 epidemic still ...

A small backyard flock in Dallas County has tested positive for highly pathogenic avian influenza. It's the fifth bird flu outbreak in Iowa this year.

The Minnesota Department of Health is issuing a warning to parents about a rare, potentially fatal neurological complication of the flu.

There are 70 confirmed cases of the bird flu among humans in the U.S., as of Tuesday. The CDC said the current public health risk is low.

It’s been an unusually tough winter virus season. Rates of flu-like infections are higher than they’ve been in nearly 30 years. And for the first winter since the start of the COVID-19 pandemic, flu ...

The surge in flu cases also comes amid concerns about high infection rates for other viruses including RSV, COVID-19 and the gastrointestinal bug norovirus.

Bird flu headlines include three new human cases, millions of dead birds in poultry flocks and new personnel moves from the Trump administration ...