A particularly infectious subvariant of influenza is keeping emergency room numbers high and causing especially severe ...

The spike in flu cases widely referred to in media reports as a "superflu" is largely driven by a newly identified subtype of ...

After a sharp uptick in flu cases in mid-December 2025, flu activity across the U.S. and Canada remains high.

A ferocious surge of flu cases is linked in part to a variant that has not been dominant in the past few years — resulting in ...

Massachusetts: After a sharp uptick in flu cases in mid-December 2025, flu activity across the US and Canada remains high.

Mpox may be spreading more widely in Africa than previously thought because of asymptomatic transmission, according to new ...

Flu is rising rapidly across the U.S., driven by a new variant of the virus. The Centers for Disease Control and Prevention ...

The CDC estimates there have been at least 19 million cases so far this season.

Seasonal flu activity is up across the United States, according to the Centers for Disease Control and Prevention data.The ...

Subclade K, which is circulating in Arizona, has been dubbed a 'super flu' but some experts say that's not an accurate characterization.