Add Yahoo as a preferred source to see more of our stories on Google. Flu activity is exploding across the United States this flu and cold season, in some cases reaching record highs, according to new ...

Add Yahoo as a preferred source to see more of our stories on Google. Flu activity is starting to decline nationwide, according to newly released data from the Centers for Disease Control and ...

(CNN) — Flu activity has ticked back up slightly in the US, thanks to a very small increase in infections caused by influenza B — viruses distinct from the new subclade K strain that’s been the ...

Flu activity is continuing to climb across the U.S. as hospitalizations rise, according to newly released data from the Centers for Disease Control and Prevention. The percent of outpatient visits for ...

Influenza activity has risen to the highest levels so far this season and is continuing to increase in New Jersey and throughout the United States, data shows. Doctors expect this trend to continue.

NEW YORK — As the U.S. flu season winds down, health officials say the flu vaccine didn’t work very well, with one of its worst effectiveness rates in more than a decade. A new strain that dominated ...

Flu continues to bring misery across the U.S., with all but four states showing high or very high levels of activity as a new virus strain called subclade K continues to spread.By another measure – ...

The 2025-2026 flu vaccine reduced influenza-related outpatient visits and hospitalizations despite an antigenically drifted A(H3N2) strain.