Antibiotics have become a common tool to help keep us healthy, but as concerns about antibiotic resistance grow, these medications may have to be approached in a new way.

A multi-state outbreak of Salmonella in raw chicken that started a year ago was recently declared over, but now authorities have reported that illnesses are continuing to be discovered.

With emerging viruses like bird flu and MERS in the news, many Americans may not give much thought to hepatitis C. But new research shows the illness still affects millions in the US.

Sleep apnea affects about a fifth of Americans and has been linked to heart disease and brain dysfunction. It's possible that this condition is associated with lung disease as well.

This year’s flu vaccine provides protection against the most common strain of flu this year, H1N1. The flu is still infecting people, and it’s not too late to get vaccinated.

The US was declared polio-free over 30 years ago, but now an unknown illness that may be related to the disease is causing concern in California.

It makes sense that the vaccine designed to protect kids against measles, mumps and rubella does just that. But it may do even more.

Previous research established a link between prenatal exposure to infection and later schizophrenia. New research aimed to see if this same link was present for bipolar disorder.

Doctors recommend annual flu shots to help patients stay healthy during flu season. New research suggests that the flu vaccine also might help prevent stroke.