Testing which genes make red blood cells vulnerable to malaria is now possible, a new study published in Science demonstrates.  Manoj Duraisingh at the Harvard T. H. Chan School of Public Health and colleagues sidestepped the issue of red blood cells lacking DNA—which…

The West deserves a significant share of the blame for the Ebola crisis, according to Michael Specter in this though-provoking essay on post-epidemic blame. The stark findings of the Ebola Interim Assessment Panel, commissioned by the WHO in March, emphasize that the world…

Over the weekend, the WHO declared Liberia to be Ebola-free, though Guinea and Sierra Leone are still fighting the virus. While the news is welcome in Liberia, the country still has much work ahead to prevent another crisis from happening again, warn Judith Rodin, president…

After the introduction of the measles vaccine, the rates of death from other diseases, like pneumonia and diarrhea, fell too—and for years scientists couldn’t explain exactly why.

Liberians are emerging from the nightmare of Ebola. If there are no new infections in the next 48 hours, WHO will declare the country "Ebola-free." Saturday would mark 42 days—or twice the incubation period of the virus—since the last case. “Virtually the whole country, in…

The once-marginalized philosophy of harm reduction is changing the way many view the war on drugs, but is hardly a consensus view, argues Christopher Moraff, recipient of a 2014 H.F. Guggenheim Fellowship for criminal justice reporting. In this strongly worded opinion…

Aid agencies are struggling to contain a massive measles outbreak in Sudan, where UNICEF has tallied 2,200 confirmed cases over the last 4 months. The first phase of an immunization campaign, in which 2 million Sudanese children were vaccinated against measles, has just…

11,005 people have died of Ebola, WHO reported, but the number of new cases has dropped. Unless any new cases appear before May 9, the WHO will declare the epidemic over in Liberia. New cases have also declined in Guinea and Sierra Leone, with 9 new cases reported in each…

Using blood samples collected throughout the Ebola outbreak, scientists tracking mutations in gene sequences to map its spread have discovered that mutations first detected in Sierra Leone last spring were found later in Liberia and Mali. A big finding: Viral descendants…

The outbreak of HIV/AIDS cases in rural Scott County, Indiana, has forced a skeptical and conservative Governor Mike Pence to authorize—and extend—a needle-exchange program. The move followed a recommendation by the CDC and state public-health officials, and since then,…