Schools in at least two states canceled classes at the start of this week amid a surge in influenza cases nationwide.

Preliminary data from the CDC show that since October, there have been between 20 million and 35 million flu illnesses in the ...

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

The Centers for Disease Control and Prevention has reported a significant increase in norovirus cases over the past several ...

They want an explanation for why the agency took down information used for planning disaster relief, studying medical ...