Medical advances have changed the future of today's patients with HIV. Most children with HIV grow into adults these days. But that presents challenges, too.

Little kids are notorious for having runny noses a lot of the time. It can be hard to tell the difference between allergies, a cold and a more serious infection. Research data can help.

The World Health Organization has initiated an emergency meeting this weekend to combat a mysterious new respiratory illness that may be more deadly than SARS.

A virus that’s been linked with cervical cancer is now known to be involved in a number of other cancers. The human papillomavirus (HPV) is a major risk factor for oral cancers.

Early diagnosis of sarcoidosis is key to preventing severe organ damage. This disease, which causes inflammation of body organs, can lead to permanent scarring of tissue if untreated.

Female sex hormones have a number of jobs to do. While they can regulate mood and sexual function, they might also help protect women from infection.

When flu season is around the corner, you're likely to see lots of reminders to get the flu vaccine. Is the flu vaccine likely to make much of a difference?

Only one vaccine currently protects against an infection that can directly cause cancer — the HPV vaccine. Good news about that vaccine is that research is showing that it's working very well.

Most parents get their children all the recommended vaccines. Yet, they might wonder how effective those vaccines are. Vaccines are tested for safety and effectiveness regularly.

Bodies in top-notch shape internally tend to defend themselves against infection and a variety of disease. When those inner defenses are down, however, body and mind alike can suffer.