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

Nineteen-year-old U.S. Army Pvt. David Lewis set out from Fort Dix on a 50-mile hike with his unit on Feb. 5, 1976. On that bitter cold day, he collapsed and died. Autopsy specimens unexpectedly ...

Delhi Swine Flu Outbreak: The national capital is battling the worst Swine flu (H1N1) virus outbreak in years. According to the latest data, over 54% of households in the Delhi-NCR region has reported ...

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

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

TWO OF THE FOUR CHILDREN WHO HAVE DIED FROM THE FLU ARE FROM HERE IN THE CITY OF BOSTON. AND CITY HEALTH OFFICIALS SAY TWO OF ...

H3N2 subclade K strain — is responsible for 90% of influenza A cases across the U.S., which has led to double the cases in ...