Daniel Bausch

One year into the world's worst Ebola outbreak, doctors are reporting an encouraging sign: About 70 percent of patients in a hard-hit area of Sierra Leone now survive.

When two American aid workers recovered from Ebola after being treated with an experimental drug, the grieving family of Sierra Leone's most famous doctor wondered why he had been denied the same treatment before he died from the deadly virus.

One year into the world's worst Ebola outbreak, doctors are reporting an encouraging sign: About 70 percent of patients in a hard-hit area of Sierra Leone now survive.

When two American aid workers recovered from Ebola after being treated with an experimental drug, the grieving family of Sierra Leone's most famous doctor wondered why he had been denied the same treatment before he died from the deadly virus.