While we often refer to it as "the flu," the influenza virus has several strains, with flu A and flu B considered the most ...

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Flu A and flu B are two different strains of influenza, explains Thomas Russo, M.D., professor and chief of infectious ...

It's flu season right now, and the U.S. is in the midst of a wave that's straining hospitals. But not all influenza is the ...

While we often refer to it as "the flu," the influenza virus has several strains, with flu A and flu B considered the most ...

Cases of the flu continue to rise nationwide and now appear to be higher than they've been in at least three decades, ...

Six dairy herds in Nevada have tested positive for a newer variant of the H5N1 bird flu virus that’s been associated with ...

NEW YORK (AP) — The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.

Flu season is here with some other ickiness joining the petri dish party, including allergies, strep, pneumonia, COVID-19 and norovirus.

There's also one big difference between the flu and COVID or a cold that can indicate which illness you have. Don't ignore it ...