Tuberculosis is still a concern in the US, and researchers are examining a related condition that may begin to cause more trouble.

When a friend or coworker is sick with the flu, people tend to take precautions to avoid getting sick themselves. But it may not always be obvious that someone is carrying the flu virus.

Most of the press around the start of flu season focuses on high-risk groups, such as children, the elderly, pregnant women and those working in healthcare. But others are at risk too.

New guidelines just released are suggesting different ways to assess and treat wounds caused by the difficult-to-treat bacteria called MRSA.

The hope is always that surgery will be the end-of-the-line answer to a health issue, but that ideal is not always the reality. After knee replacement, a revision surgery is sometimes needed.

It's easy to forget how horrible many childhood diseases were before vaccines were introduced. And it's even easier to forget how much those diseases cost families and society.

The flu vaccine is not perfect, but it has been shown to reduce a person's risk of getting the flu. For children in particular, this can mean avoiding the hospital.

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.