Africa

Hundreds are feared killed after Boko Haram militants seized the northeastern Nigerian town of Baga. Nigerian government forces are battling to regain control of the town and nearby base.

Missionaries have been on the front lines in the fight against Ebola. Their faith and long ties to West Africa have made them key players in the response to the outbreak there.

A father brought his teenage son back from the capital. The boy fell ill. The parents blamed an attack by a magical leopard. But it was Ebola.

An ambulance in Sierra Leone is sent out to pick up a suspected patient. But after two wrong turns and several stops for directions, it arrives at the home of a 14-year-old boy with no signs of Ebola.

An ambulance in Sierra Leone is sent out to pick up a suspected patient. But after two wrong turns and several stops for directions, it arrives at the home of a 14-year-old boy with no signs of Ebola.

A woman is thought to be spreading Ebola in a remote village. So health workers spend four hours trekking through the bush to track her down. By the time they make it, it's too late.

The eradication of smallpox was arguably one of the greatest achievements of modern medicine. But people had crazy ideas about the vaccine when it was created in 1798. A new exhibit tells the story.