The newer strain had been seen before in more than a dozen people exposed to poultry, but this is the first time an infection was traced to a cow. The Nevada dairy worker was exposed at a farm in ...

Influenza levels in the US are the highest they've been in 15 years amid winter weather and a second wave of the virus.

The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.

Flu infections are at or near their highest levels in at least 15 years and are still rising, the Centers for Disease Control and Prevention says.

Eleven states are experiencing very high levels of flu and some schools have been closed by the burden on students and staff.

More than 24 million people have had seasonal flu this season, according to estimates from the Centers for Disease Control ...

Flu cases soar across the US; Sacramento sees highest flu-related medical visits since 2009. Learn prevention tips and why vaccination rates matter.

When H5N1 first came to the attention of infectious disease professionals 20 years ago, there was concern it could mutate and ...

Aerospace startup Boom says they've proven quiet supersonic flight is possible with their passenger airplanes after a successful second test flight. Dallas Cowboys star Dak Prescott tells Fox News ...

Trader Joe’s not the only company that is limiting how many eggs shoppers can buy. Costco is limiting its members to three ...

Yahoo News provides the latest updates on the spread of bird flu in the U.S., and its effect on rising egg prices and ...