Nurith Aizenman

How big a threat is the new coronavirus linked to a pneumonia outbreak in China? Here's what experts will need to answer that question.

A troubling new virus that surfaced in the Chinese city of Wuhan last month is raising concerns. Health authorities there say they have identified at least 139 people who've been infected.

The CDC says the U.S. will start screening passengers traveling from Wuhan, China for symptoms related to a novel virus that's caused an outbreak of pneumonia in that city.

As the world's second-worst Ebola outbreak in history drags into a new year, experts think the solution is less about medicine, and more about security.

The Ebola outbreak in Democratic Republic of Congo is flaring up again. After several attacks on health workers, responders are still struggling to get back into areas where the disease is spreading.

Dr. Marie-Roseline Bélizaire says the United Nations is failing to keep its medical workers safe.

Every time we divvy up our money among good causes, we're making a moral judgment about who is most deserving.

Research suggests the most effective way to help poor people can be to give them no-strings-attached cash. Now a new study finds even neighbors who don't get the aid benefit.

After a surge in violence in the Congolese city of Beni, the World Health Organization and UNICEF have decided to temporarily pullout non-essential staff from the Ebola hotspot.

Research suggests the most effective way to help poor people can be to give them no strings attached cash. A new study finds even neighbors who don't get the aid benefit from a big ripple effect.

Uganda is challenging morphine's reputation as an archaic, dangerous drug — and inspiring other African countries to do the same.

There's a massive shortage of painkillers in Africa. But Uganda has come up with a low tech solution: mixing morphine powder with water and providing bottles of it to patients for free.

In lower-income countries, snakes, cow carcasses and collapsing walls are among the hazards faced by this critical but long-ignored group of workers.

A sweeping study in The Lancet finds that longstanding progress in treating diseases and reducing childhood deaths is in jeopardy.

The first-ever Global Tobacco Industry Interference Index points to the creative rules that some nations use — and what happens when contact isn't policed.

How does their approach work in practice? And why is it considered so ground-breaking?

Even as U.S. authorities investigate Juul for marketing to minors and making unproven safety claims, the company is using those tactics to expand to poorer countries. Case in point: the Philippines.

The foundation has just released its annual report on progress toward Sustainable Development Goals. The conclusion: Inequality is rampant, and it's time for some hard choices.

There's mounting evidence that the measles virus can erase our immunity to everything from influenza viruses to diarrheal disease.

When she was 19, Renee Bach founded a charity that went on to care for over 900 severely malnourished babies and children. Now she is being sued by two of the mothers whose children died.