Infections from Clostridium difficile — known as C-diff — are surpassing MRSA infections, a study of 28 hospitals in the Southeast found.

Federal health advisers said Thursday an electronic heart implant should be approved for a large group of heart-disease patients who currently aren't eligible for the device.

In some cases, financial institutions and other recipients got doses before some county health departments and doctors' offices, according to records obtained by The Associated Press through a Freedom of Information Act request.

A global vaccine initiative launched with the help of Bill Gates is seeking $4.3 billion in new funding to ramp up child immunization campaigns against deadly diseases such as hepatitis B, diarrhea and pneumonia in the developing world.

The World Health Organization says it doesn't have enough information to know if it is winning the fight against drug-resistant tuberculosis.

If you have a heart-zapping defibrillator implanted in your chest but now are dying of something else, when do you have it turned off?

A year after kicking the habit, smokers' arteries showed signs of reversing a problem that can set the stage for heart disease, according to the first big study to test this.

New HIV infections are increasing among homosexuals, drug users and prostitutes who don't seek help because of laws that criminalize these practices, the head of the U.N. AIDS agency said Monday.

Stock market slides may hurt more than your savings. New research suggests they might prompt heart attacks.

Key results from a landmark federal study are in, and the results are disappointing for diabetics: Adding drugs to drive blood pressure and blood-fats lower than current targets did not prevent heart problems, and in some cases caused harmful side effects.

Many Americans with leaky heart valves soon might be able to get them fixed without open-heart surgery. A study showed that a tiny clip implanted through an artery was safer and nearly as effective as surgery, doctors reported Sunday.

Stock market slides may hurt more than your savings. New research suggests they might prompt heart attacks.

The Food and Drug Administration is adding its strongest warning to the label for Plavix, cautioning that some patients do not respond to the blockbuster blood thinner.

Too much cancer screening, too many heart tests, too many cesarean sections. A spate of recent reports suggest that too many Americans - maybe even President Barack Obama - are being overtreated.