To get slightly ahead of the virus, health officials need to quickly identify people at risk of infection, a practice known as contact tracing. That's a challenge in the Democratic Republic of Congo.

In the Democratic Republic of the Congo (DRC), UN health teams and partners are still racing to contain the rapidly expanding Ebola outbreak, despite ongoing insecurity in eastern…

To get slightly ahead of the virus, health officials need to quickly identify people at risk of infection, a practice known as contact tracing. That's a challenge in the…