The Democratic Republic of Congo says that confirmed Ebola deaths have reached 2,011, the latest grim milestone in what health officials have described as the fastest-spreading outbreak on record.

Adding to scientists' understanding of the crisis, a new study has found that the outbreak was most likely triggered by a new spillover of the virus from animals to humans, rather…

Congo's Ebola outbreak has recorded at least 2,000 deaths among confirmed cases, the fastest growing on record.