Flu-related pediatric deaths have doubled since last week, according to the CDC. Here's what to know this week, including ...

The CDC estimates there have been at least 19 million cases so far this season.

Medical experts debunk flu shot myths: vaccines use inactive virus that cannot cause illness. Discover what side effects actually mean for your immunity.

Flu cases are ticking down, but experts warn the U.S. isn’t out of the woods yet.

Flu cases and hospitalizations are surging, already breaking last season's records. Here's where activity is highest, what ...

Feeling under the weather? You could have Influenza Type A. Here's the difference between Influenza Type A and Type B.

The Influenza A H3N2 virus subclade K represents a change in the basic structure of the influenza virus.

Flu activity is surging and expected to continue. Meanwhile, the Florida Health Department hasn't released a weekly report in more than three weeks.

The Colorado Department of Public Health and Environment has confirmed that a third child has died in Colorado from an influenza-associated illness so far for the 2025-2026 respiratory disease season.

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

The spread of influenza-like illness has reached "very high" levels in Michigan, according to the U.S. Centers for Disease Control and Prevention.

California public health officials cautioned more children are testing positive for the flu this season. Here are flu ...