Getting the flu is more than just uncomfortable—it can actually cause serious health complications (and even death) for older ...

Starting Friday, Americans can order the nasal spray flu vaccine online and have it shipped directly to their home.

The approval of the new nasal spray comes ahead of this year's influenza season in hopes to prevent the unusually high ...

The total number of licensed physicians in the U.S. last year reached 1,082,187, a 27% increase since 2010, according to the ...

A Legionnaires' disease cluster in the Harlem area of New York City has caused four deaths and sickened over 100 people. Here's what it is, symptoms and how it's spread.