All viral activity benchmarks have gone down, except for a slight increase in the death rate. Here's what to know about the ...

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

U.S. flu infections still are surging, and health officials say it's a severe season that's likely to get worse.

The flu has further tightened its grip on the U.S. This season is now as bad as the swine flu epidemic nine years ago. A government report out Friday shows 1 of every 13 visits to the doctor last week ...

Last week’s national flu tracker showed Georgia and South Carolina among the hardest-hit states, with flu levels “very high.” ...

Remember when pandemics were something we only read about in history books? Good times. Today, we’re looking back at when Bulgaria swine flu became a big deal. It’s a story of how it spread, the ...

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 ...