One of the most recent vaccines added to the childhood schedule is the chickenpox vaccine. Enough time has passed to learn more about how effective the vaccine is.

Designing effective ways to reduce both teen pregnancy and unsafe sex requires knowing how many girls are actually having sex and using contraception.

Rotavirus was the leading cause of diarrhea and stomach pain in infants and young children across the globe. But now, another group of viruses might be taking its place.

Vaccines are important for babies, but teens should stay up to date on their vaccines as well. This is especially true for the tetanus, pertussis, meningitis and HPV vaccines.

One of the single best ways to avoid getting the flu is to get the flu shot. But some people worry about possible side effects from the shot.

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.

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.

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.

The immune system is a funny animal. It's job is to protect the rest of the body, but it can be affected by the health of the rest of the body too – even mental health.