A botched lethal injection in Oklahoma this week has renewed a debate on whether doctors should be banned from executions — or required to participate to make the process more...

Researcher Leonid Moroz emerges from a dive off the Florida Keys and gleefully displays a plastic bag holding a creature that shimmers like an opal in the seawater.   This translucent animal...

More than three decades after the eradication of smallpox, U.S. officials say it is still not time to destroy the last known stockpiles of the virus behind one of history's deadliest...

Scientists implanted thin sheets of scaffolding-like material from pigs into a few young men with disabling leg injuries — and say the experimental treatment coaxed the men's own stem cells...

Bacteria resistant to antibiotics have now spread to every part of the world and might lead to a future where minor infections could kill, according to a report published Wednesday by the World Health...

Executions by lethal injection in US involve a common medicalprocedure and government-approved medications — used for non-medical purposes. That's one reason why the...

Health officials confirmed the first case of an American infected with a mysterious virus that has sickened hundreds in the Middle East.   The man fell ill after flying to the U.S. late last...

U.S. government health regulators have cleared a genetic test from Roche as a first-choice screening option for cervical cancer. It was a role previously reserved for the Pap smear, the decades-old...

Australian researchers are trying a novel way to boost the power of cochlear implants: They used the technology to beam gene therapy into the ears of deaf animals and found the combination improved...

Health officials are worried about recent U.S. measles outbreaks that so far have caused more illnesses than at the same point of any year since 1996.   Authorities say 129 cases in 13...