The weekly number of lab-confirmed influenza cases on Long Island was the highest in at least the past two seasons, with ...

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

It's an unusual winter for respiratory illnesses. The flu is peaking twice: once in early January and again in February.

This year's flu season started unusually early and has been spreading at high levels around the country. And now, it looks like the U.S. is experiencing a second peak of flu activity this winter.