A mutated strain of influenza A, H3N2 subclade K, is surging worldwide, sparking concern about a severe flu season in the U.S. Here's what to symptoms to look out for.

Add Yahoo as a preferred source to see more of our stories on Google. Getty Images An alleged warning has spread online for years about a supposed "new COVID-Omicron XBB variant" — a new strain of the ...

Vaccine effectiveness (VE) against COVID-related hospitalization was 40% (95% confidence interval [CI], 27% to 51%) through ...

Federal vaccine advisers are reshaping how the United States will approach Covid shots in the coming seasons, shifting from blanket recommendations to a more individualized, risk based strategy. Their ...

Editor’s note: “Behind the News” is the product of Sun staff assisted by the Sun’s AI lab, which includes a variety of tools such as Anthropic’s Claude, Perplexity AI, Google Gemini and ChatGPT. A ...

Flu activity in Texas has reached a “very high” level for the first time this season, according to new data from the Centers for Disease Control and Prevention, with emergency room visits climbing ...

Please provide your email address to receive an email when new articles are posted on . A real-world study examined the effectiveness of the 2024-2025 vaccines among children U.S. The vaccines were 76 ...

This article examines the state of public health in the United States in January 2026, detailing mass COVID-19 infection, excess deaths, collapsing vaccination coverage, immune damage and the ...

An alleged warning has spread online for years about a supposed "new COVID-Omicron XBB variant" — a new strain of the coronavirus that has spread globally since early 2020. Framed as official guidance ...