Tis the season for getting sick. Here's what to know about the pathogens circulating in the U.S. this December and how to ...

Norovirus, a common group of viruses causing gastroenteritis, is in its peak season. Here's how to avoid getting sick.

Norovirus outbreaks have been reported in Illinois and across the nation this season, and the group of related viruses can ...

FRESNO, Calif. -- Hundreds of people have fallen ill after visiting Yosemite National Park, the park said in a statement on Thursday. According to the statement, approximately 170 employees and ...