For a second time this season, at least 41 states are reporting high or very high levels of the flu. Here's how to stay safe.

Flu cases had previously peaked this season at the very end of December. At week 52 —ending on December 28—the percentage of ...

For the first time since 1952, publication of the CDC's Morbidity and Mortality Weekly Report was halted. It returned on Feb.

Levels of influenza nationwide are now at the highest they have been since the peak of the 2009 swine flu pandemic, according ...

Outpatient health care visits for flu-like illnesses are at their highest levels in 15 years, according to data updated ...

Two rare bird flu strains have emerged since late January, prompting public health concerns during a freeze on federal health communications.

Pregnancy Enhances Natural Immunity to Block Severe Flu Dec. 2, 2024 — Scientists have discovered that pregnancy may trigger a natural immunity to boost protection against severe flu infection.

Schools around the U.S. are closing due to surges of flu and other illnesses, which are sickening students and staff. Here's what parents need to know.

(NEXSTAR) – The flu is spreading far and wide across the U.S. – and influenza A is largely to blame. Of all the flu tests reported to the Centers for Disease Control and Prevention since the ...

When it comes to the potential of H5N1 avian flu, otherwise known as bird flu, picking up mutations that may lead to human-to ...