Five patients have recovered from a rare type of Ebola virus, the head of the World Health Organization said Sunday during a visit to Bunia in eastern Congo.

The head of the WHO on Saturday visited eastern Congo's Bunia, a city at the heart of an outbreak of a rare type of Ebola, where the virus is spreading faster than the response despite better-organized health facilities and new aid arrivals.

Health workers are handling the disease with minimal resources, because agencies have been scrambling to bring aid into the region.