A late-emerging influenza A mutation known as subclade K weakened protection, but doctors say vaccination still reduces ...

Flu cases and hospitalizations are surging, already breaking last season's records. Here's where activity is highest, what ...

While vaccines may not fully protect everyone, public health experts say they’re still proven to help prevent serious illness ...

The CDC estimated there have been at least 7.5 million illnesses in the U.S., 81,000 hospitalizations and 3,100 deaths from ...

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

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

U.S. flu infections are showing signs of a slight decline, but health officials say it’s not clear that this severe flu ...

While the new findings are encouraging, "vaccines won’t do any good if people don’t get them," one expert said.

Australia’s 2025 flu season lasted weeks longer than it normally does. Hong Kong’s hit so early that the rollout of seasonal ...

A new flu variant fueling a fast-paced rise in cases across the state has brought with it some symptoms unlike those many ...

Researchers are not just worried about the virus popping up on American farms. Other types are causing trouble around the ...

Approximately 80% of active flu cases are an unexpected strain of Influenza A virus that health officials are calling a super ...