Norovirus positive test rates neared 14 percent this November, up from about 10 percent this time last November. Higher positive test rates suggest this norovirus season may be just as bad or even ...

Norovirus infection has characteristic clinical and epidemiological features that can allow its differentiation from other causes of gastroenteritis. Norovirus is often acquired from a contact with ...

This winter's wave of norovirus infections has reached levels that are now more than double last season's peak, in figures published Monday by the Centers for Disease Control and Prevention tracking ...

WASHINGTON — This winter's wave of norovirus infections has reached levels that are now more than double last season's peak, in figures published Monday by the Centers for Disease Control and ...

Norovirus cases have risen in the United States in recent weeks, according to data from the Centers for Disease Control and Prevention. Nearly 14% of tests for the illness came back positive during ...

Flu season may be mostly behind us, but levels of norovirus, the nasty, highly contagious stomach bug, are rising, according ...

In an early clinical trial, an experimental norovirus vaccine given as a pill produced defensive responses exactly where it counts—in the saliva of older people most vulnerable to the explosive ...

Add Yahoo as a preferred source to see more of our stories on Google. Kinga Krzeminska/Getty Images Norovirus outbreaks are popping up around the United States, causing concern during a winter when ...

The source of the outbreak remains unknown, but dozens of hikers have fallen ill.