June 3, 2013 Tuberculosis is much less of a health threat in the United States than it is in other countries. But a family in Boston discovered that even here, no one is immune from this ancient foe. More than a dozen family members were infected with TB, and matriarch Judy Williams died at age 59.
May 29, 2013 All told, the fatality rate for confirmed infections with the virus has been more than 50 percent. But the true fatality rate won't be clear until the fuller extent of cases, some probably much milder, becomes known.
May 23, 2013 The virus's ability to move between these mammals might not bode well for humans. So far, it appears that H7N9 doesn't pass easily between people, but it could mutate over time and pose more of a threat.
May 22, 2013 A handful of polio infections in Kenya and Somalia could set back efforts to wipe out the virus worldwide, health workers warned Wednesday. The last time there was polio in this region, the virus spread throughout the Horn of Africa into the Middle East and eventually into Indonesia.
May 18, 2013 The world's top health problems are more common in men than women. But recent global funding has been skewed toward women's issues. Some health economists say more effort should go toward stopping men's risky behaviors, like smoking and drinking.
May 16, 2013 Scientists used a Dutch woman's dirty stocking to learn that mosquitoes infected with malaria find humans hard to resist. Like a fungus that turns ants into zombies, the parasite seems to change the behavior of the mosquitoes for its own benefit.
May 13, 2013 SARS burst on the scene in 2003 after one man infected travelers staying on the same floor of a Hong Kong hotel. Now that a new virus with similarities to SARS has spread from person to person, public health officials are urging hospitals to be on guard.
May 9, 2013 Infecting mosquitoes with a specific type of bacteria makes the insects resistant to malaria. Now scientists have figured out how to get the mosquitoes to pass the infections on to their offspring. If it can done reliably, it might help interrupt transmission of malaria to humans.
May 8, 2013 The Microsoft founder and philanthropist is putting his money and time where his passion is: eradicating polio. Gates talks with NPR's Robert Siegel about why it makes sense to spend an estimated $5.5 billion to wipe out the disease once and for all.
May 8, 2013 Those people who have contracted the H7N9 virus have become very sick. And unlike the older bird flu virus, this one shows some adaptation to mammals, making it a matter of concern. But it doesn't make chickens sick, posing unique difficulties in fighting this kind of flu.
May 7, 2013 With the new H7N9 virus spreading through China and H5N1 popping up every now and then in Southeast Asia, it's tough to keep track of all the flu viruses. Here's a quick guide to what those H's and N's mean, and why viruses with these letters cause the most concern.
May 7, 2013 Each year more than a million babies die within the first 24 hours after birth, a study finds. But there are some simple, inexpensive things that could save these infants, like early breast-feeding and teaching moms to hold their newborns close.
May 1, 2013 For more than a decade, a nonprofit in Tanzania has been using the rat's keen sense of smell to detect buried land mines around the world. Now the group is training the critters to help diagnose tuberculosis at rural clinics.
April 26, 2013 An oversight committee halted a big clinical study of an experimental HIV vaccine after a peek at preliminary results showed there was no way the study would be able show the vaccine works. More vaccinated people became infected with HIV than those who got placebo shots.