Federal health officials upended the immunization schedule for American children this week. These are the diseases affected.

President Donald Trump spread some confusion about childhood vaccinations in social media posts about changes to U.S. vaccine ...

Even without a perfect match, public health experts say the flu vaccine offers important protection against serious ...

Shasta County Health Officer Dr. James Mu said this year's flu season started earlier than normal, but says the severity ...

A mutated strain of influenza A, H3N2 subclade K, is surging worldwide, sparking concern about a severe flu season in the ...

The Missouri Department of Health and Senior Services reported a significant increase in flu activity statewide. The ...

Influenza A (H3N2) viruses appear to have entered a new phase of evolution. Analysis of more than 24,000 viral sequences revealed increasing diversification within clade J.2 and the emergence of a new ...

GREENVILLE, S.C. (FOX Carolina) - South Carolina has reported its first flu death this month, with health officials confirming the victim was a Lowcountry resident, as medical experts warn about a new ...

Flu season is in full swing, and health experts are sounding the alarm on a variant that could bring another severe season in the U.S. Influenza A (H3N2) viruses are the most frequently reported ...

Medical professionals have identified a new flu variant called "subclade K," noting it is known to be more infectious and cause more serious disease in seniors and young children. So far, influenza ...

This year’s flu season is shaping up to be a nasty one—driven by a new variant of the influenza virus that may be able to slip past our vaccine defenses. A mutated form of the influenza A strain H3N2 ...

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