Health officials say two children died Friday after being infected with a rare parasite, usually associated with swimming in stagnant water.

The boys, aged 9 and 7, did not know each other but were believed to have been swimming in pond areas before contracting Naelgleria, an amoeba that enters the body through the nose and can cause deadly imflammation of the brain

A new study suggests that some people infected by the monkeypox outbreak in 2003 were protected by previous smallpox vaccinations. This finding could prove beneficial in the event of a bioterrorism attack, researchers say.

The monkeypox outbreak made 72 people ill in several Midwestern states, but did not cause any fatalities

In what may be a less controversial alternative to stem cells from human embryos, scientists may be able to harvest the cells from placentas saved during childbirth.

They found primitive cells in a part of the placenta called the amnion, which were able to form a variety of cell types and which look similar to embryonic stem cells, according to the Associated Press

A 12-year-old girl collapsed at a Disney World water park in Orlando, Florida, and later dies.

According to officials with the Orange County Sheriff's Office, the girl was in Typhoon Lagoon's wave pool at about 6 p.m., when lifeguards notice her lying on a ledge

A top medical specialist says Wednesday the practice of French hospitals keeping fetuses and stillborn babies is commonfare throughout the European nation.

The revelation comes just one day after the discovery that 351 stillborn babies and fetuses were being kept in the morgue of Saint-Vincent-de-Paul Hospital, some as long as two decades