Influenza is an infectious disease of the mouth, nose and upper airways caused by a flu virus. In Europe, during the 15th and 16th centuries, people believed flu epidemics were influenced by the ...

The flu is contagious until your temperature has returned to normal and you've been without a fever for at least 24 hours.

We write stories that make you richer. Take a second right now: Follow us and get tips that will change your life. Not all flu shots are created equally, and it’s especially important for older people ...

CLEVELAND, Ohio — Influenza A — a nasty virus that fueled the 2009 flu epidemic — is landing increasing numbers of Ohioans in the hospital. In Cuyahoga County, influenza A, one of four types of flu ...

Though the common cold and the flu have very similar symptoms, some key differences like how high your fever is will help you ...

The flu sickens millions of people in the U.S. every year, and the past year has been particularly tough. Although infections are trending downward, the Centers for Disease Control and Prevention has ...

Here’s what medical experts say could be behind the recent rise of influenza cases in Japan, India, Singapore, Thailand, and ...