Vaccinations can offer protection that prevents disease and saves lives. For HIV-infected patients, this protection may not last as long.

People go on a cruise usually expecting relaxation and adventure. Yet some passengers on a California-based ship have been met with an unpleasant type of adventure — that of a stomach virus.

Traveling can expose people to new cultures and sights, but sometimes it can also expose people to diseases not typically seen at home. This is expected to be the case for one US patient.

People who had chicken pox as a child may develop shingles — an often painful, blistering rash caused by the same virus — as an adult. Now researchers suggest that having shingles may lead to a more serious health issue.

Mumps is now a fairly rare occurrence in the US, thanks to routine vaccination programs. However, outbreaks can still occur, as some residents of one US state are seeing.

Though not a direct threat on American soil, health officials from the US and around the world are closely watching an outbreak of the Ebola virus in West Africa.

HIV patients can live longer, healthier lives today and one recent study took a look at their risk for a disease usually associated with growing older.

Measles is no longer a widespread issue in the US, but that doesn't mean infections and outbreaks can't occur, as one US state is currently seeing.

For most kids, the flu means missed days from school and bad symptoms, but for others it can spell hospital time. According to a new study, there may be a way to keep many of these kids out of the hospital.

Are your kids really washing their hands properly? A new infectious disease outbreak in Miami may cause some parents and teachers to take extra note of these hygiene habits.