Bird flu cases are still rising in the U.S. as the virus continues to devastate poultry farms. More than 145 million chickens ...

Egg prices have more than doubled over the last two years as a dangerous strain of bird flu has swept across the country.

Spanish flu pandemic was caused by a particularly virulent strain of influenza virus. It infected 500 million people, caused ...

RSV is usually contagious for three to eight days. A patient also may be contagious a day or two before experiencing symptoms, the CDC said. Infants and those with weakened immune systems, however, ...

A pandemic is not inevitable, scientists say. But the outbreak has passed worrisome milestones in recent weeks, including ...

Now that we’re well into flu season (widely considered to be between December and February), you may be wondering just how effective this season’s flu shot is proving to be. W ...

The U.S. is seeing a "quad-demic" as cases of COVID-19, flu, RSV and norovirus spread at the same time. Experts said this is ...