Viral infection comes from contaminated food, water or contact with infected person

Researchers followed kids, teens as they grew up and found sleeping patterns shifted, shrunk

Researchers followed kids, teens as they grew up and found sleeping patterns shifted, shrunk

Protective gear provided to care for one patient for five days

Researchers suspect diet may play role in possible reduced risk

Obesity procedure could offer alternative to invasive surgery, experts say

In studies, vast majority of people who said they had the allergy showed no evidence of it in skin tests

Study found older people who felt life had meaning had better survival

First incident may come from a new lunch food

Even though they may not be inhaled, 'cloud' of smoke could be as dangerous as that from cigarettes