November 29, 2012 HIV has been declining in many parts of the world over the past decade. Today the U.S. unveiled an ambitious plan to stop most new HIV infections around the world. But some health leaders question whether their goals are realistic, especially with impending budget cuts.
November 28, 2012 A few months ago health workers discovered a new variety of coronavirus that killed one man and hospitalized another. Now the virus has infected four more people in the Middle East. How they got sick is a question scientists would like to answer.
November 27, 2012 The number of new HIV infections in the U.S. is relatively stable at about 50,000 people a year. But HIV is on the rise in people under 25, federal data show. The upswing is driven largely by infections among young black men.
November 27, 2012 Because many people don't disclose behaviors that put them at a higher risk for hepatitis C, an influential medical panel doctors is moving toward a recommendation that all baby boomers get tested.
November 21, 2012 Although new HIV infections have dropped by as much as 50 percent in many African countries, the fight against AIDS seems to be losing its footing in Eastern Europe and parts of Asia. New infections nearly quadrupled in China between 2007 and 2011.
November 14, 2012 Southeast Asia is a hot spot for drug-resistant malaria. In the past few years, parasites in two regions have become less responsive to the last, best drug we have against malaria. Researchers report that this new type of drug resistance may be spreading to Vietnam and central Myanmar.
November 14, 2012 Pakistan is close to eradicating one of the last two remaining types of polio left in the country, researchers announced on Monday. They haven't seen a case of this type in nearly seven months. Health workers are cautiously optimistic that their extra vaccination efforts are starting to pay off.
November 12, 2012 Although Lyme disease is the most common tick-borne infection in New England, researchers find that babesiosis, a disease that mimics malaria, is catching up. The swelling population of white-tailed deer and the ticks that feed on their blood may be why.
November 7, 2012 Even as winter approaches, mosquitoes are still spreading West Nile virus in the U.S. The Centers for Disease Control and Prevention says more than 5,000 cases have been reported so far this year.
October 22, 2012 Researchers in South Africa tracked how the evolution of the virus in two infected woman shaped the antibodies they produced to fight it. Several months after infection, the researchers saw that the patients had developed more "broadly neutralizing antibodies," which target different versions of the virus.
October 19, 2012 Thanks to vigorous efforts to eradicate the poliovirus through vaccination, there are only three countries on the face of the earth where polio is still endemic. NPR reporters and editors hosted a chat on Twitter: #chasingpolio.
October 18, 2012 Adding a 12-year-old antibiotic to the regimen of patients with highly drug-resistant tuberculosis cured nearly 90 percent of patients in a study involving about 40 people in South Korea. The study, though small, suggests that the battle against the ancient scourge is far from lost.
October 9, 2012 Because of fears that lab-altered bird flu viruses could cause a deadly pandemic if they ever escaped the lab, scientists agreed to a moratorium on mutant H5N1 flu research eight months ago. Now top scientists in the field continue the debate about the work, publishing six commentaries for and against the end of the moratorium.