(CNN) — As millions of Americans hit the road or took to the skies for the holidays, another seasonal traveler is picking up speed: influenza. The US Centers for Disease Control and Prevention ...

A variant of influenza A, H3N2, is spreading across the U.S., with low vaccination rates contributing to infection rates.

Flu is surging across the United States amid a busy holiday travel time. The state of New York is among those most heavily hit. For the week ending Dec. 20, the state of New York reported its highest ...

(CNN) — Most US states are experiencing high or very high flu activity, and levels continue to increase nationwide. “Flu season is just getting started, so I think it’s really hard to say exactly what ...