A young woman arrived at the Kenema Government Hospital in Sierra Leone in late May. She had a high fever and had just suffered a miscarriage. In the course of her treatment, doctors discovered she was infected with Ebola—the first case diagnosed in Sierra Leone. She eventually recovered, but she

The Ebola virus disease outbreak in West Africa is still picking up speed, according to new case and fatality numbers from the World Health Organization (WHO) today. More than 3069 cases have been reported, and at least 1552 had died as of 26 August—but the real numbers may be two to four times

As the Ebola virus outbreak continues to run amok in West Africa, scientists are looking ahead to the possibly pivotal use of experimental drugs and vaccines against the disease. It will take months to test, produce and deploy the therapies. But researchers hold out hope that these products — even

Along with struggling to stem the deadly outbreak of Ebola in West Africa, scientists are racing to figure out where it came from. The outbreak came as a surprise because the strain that is killing people in urban areas in West Africa had previously  struck people in rural, forested parts of