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

But the most important difference between the two is that type A viruses can cause pandemics because of how often and quickly ...

A more severe and highly contagious new strain of the flu is circulating this season. It's called subclade K, or more ...

Influenza A, B, C Or D? Flu spreads easily in winter due to crowded indoor spaces, low humidity, and reduced immunity.

Is it flu A or flu B, and how long is it contagious? Here's what to know about the flu virus running rampant in New Jersey, ...

An aggressive strain of influenza is surging in Sarasota, Florida, with one hospital reporting a 30% increase in cases. This ...

Is it flu A or flu B, and how long is it contagious? Here's what to know about the flu virus running rampant in Michigan.

As flu cases rise across the U.S., those who end up contracting the virus have treatments available that may help reduce ...

After reporting was delayed due to the holidays, new CDC data shows the flu is spreading, with 33,000 people hospitalized ...

Is the 2026 super flu more dangerous than seasonal flu? Know key differences, common symptoms, warning signs, and when ...

Seasonal influenza is a contagious respiratory illness that can result in mild to severe illness, and is sometimes fatal, the Michigan Department of Health and Human Services said. The illness tends ...

The CDC says Texas flu is at "very high" levels, as the flu vaccine has been less effective against H3N2 subclade K.