Vaccines save lives by preventing a person from getting a disease or dramatically lowering their risks for the disease. But vaccines are not perfect. Their protection can wear off.

Frogs and snakes may seem like low-maintenance pets for kids. But young children can become sick from contact with reptiles and amphibians.

Mention of a "staph" infection can strike fear and the heebie-jeebies into the hearts of many, but a new study may tell us when we should really be on high alert.

The bugs are fighting back: a certain STD strain has increased resistance to common drug treatments across England and Wales.

The first documented case of a child being cured of HIV was announced this morning. HIV is the virus that causes AIDS. Approximately 1,000 children worldwide are infected each day with HIV.

Many patients living with the human immunodeficiency virus (HIV) have reported having some type of hearing impairment. Up to now, it hasn’t been clear if these patients are actually at a higher risk for hearing loss.

As people grow old, they often face increasing health issues. While certain treatments may be helpful to younger adults, the American Geriatrics Society (AGS) has recommended some treatments elderly patients may want to avoid.

One of the best ways to reduce risk of catching the flu is getting a flu shot. However, all vaccines carry some small risks. Researchers continue to look for possible evidence of these risks.

He’s probably the most famous Surgeon General who ever served this country. Dr. C. Everett Koop has died at the age of 96. The cause of his death is unknown.

Should all people get an HIV test, or just people at high risk? These questions are at the heart of long debate about HIV testing. And the debate may be coming to an end.