February 8, 2013 Clearing the blocked artery of a stroke patient with a device snaked through the blood vessel was thought to salvage threatened brain cells and prevent disability. But multiple studies are casting doubt on that conclusion.
February 4, 2013 A study in South Africa finds that an experimental vaccine against TB didn't help protect infants very much against either infection with TB or development of disease. The results were a setback, but researchers say the field remains promising.
January 24, 2013 One new analysis finds female smokers are more than 26 times more likely to die of lung cancer than nonsmoking women — twice the rate calculated 30 years ago. New data also quantify the surprising payoffs of smoking cessation — especially under the age of 40.
January 23, 2013 A study of a new drug therapy for pancreatic cancer finds it works better than the standard approach. While the improvement is modest for the typical patient, some people who received the treatment lived a year or two longer than those receiving conventional therapy.
January 18, 2013 The Food and Drug Administration just approved a flu vaccine made by cells taken from the fall armyworm, an agricultural pest. The cells produce copies of a piece of the flu virus's outer coat that primes the immune system. Conventional vaccines use the whole virus and take longer to produce.
January 12, 2013 On the third anniversary of Haiti's devastating earthquake, the country is laying plans to rid itself of the cholera epidemic that followed in its wake. Most scientists now think Nepalese soldiers unwittingly spread the pathogen in Haiti when they joined a United Nations peacekeeping force.
January 9, 2013 Americans are sicker and die sooner than their counterparts in comparable nations. No single cause can account for the difference, but improving medical care will only help so much, as disparities can be traced to dietary choices, drugs and alcohol, guns, and even cars.
January 1, 2013 The 2012 mammography debate was a continuation of a controversy touched off three years ago when a government task force said women under 50 don't need regular mammograms. And one recent analysis found that regular screenings haven't reduced the rate of advanced breast cancers.
December 20, 2012 A large niacin-plus-simvistatin study by the drug maker Merck may have far-reaching implications, since millions of people take niacin every day to prevent heart attacks and strokes. One doctor says "phones will ring off the hook in cardiology practices throughout America" because of the news.
December 18, 2012 In South Africa, drug users are crushing HIV medications and mixing them with marijuana, heroin and other illicit drugs. Public health workers worry that people who smoke so-called whoonga are helping to fuel the rise of drug-resistant HIV.
December 10, 2012 Stroke is usually a problem that comes with age, but a surprising number of children have strokes, too. Many kids have conditions that put them at higher risk. But surgeons have developed a technique that cuts the risk in some of these kids by giving part of the brain a new blood supply.
November 30, 2012 The latest cases represent the oldest known so far. They push the SARS-like virus's timeline back three months from the first reported case involving a 60-year-old man who died in Jedda, Saudi Arabia, last June.