The convergence of multiple flu strains in one animal can allow new virus strains to form—just as they did in past pandemics.

Mysterious US bird flu case in person without any known contact with an infected animal raises spectre of human-to-human ...

Avian flu in dairy cows could stick around on US farms forever, and is raising the risk of outbreaks in mammals—including ...

In addition to San Diego, wastewater bird flu detections in California included west Contra Costa County on June 10, Turlock ...

All Massachusetts dairy farms are 100 percent free of bird flu, state officials announced on Monday. At least 14 states ...

Researchers in Texas detected H5N1 in wastewater from 10 cities, but the risk to humans is currently low. Ongoing ...

With the approach of fall and cooler weather across the United States, officials say the risk posed by the H5N1 bird flu ...

This is where we are with bird flu at the moment: the awkward space between watchful waiting and all-out panic mode. The ...

Unprecedented levels of the bird flu virus have been detected in wastewater samples from across Texas, raising alarms that the disease is adapting to infect a new host.

Health officials say they don’t know how a Missouri person caught bird flu, but they believe it may be a rare instance of a ...

A person sickened by bird flu in Missouri was probably an isolated case, federal health officials said Thursday, though they ...