Authorities are deploying a vaccine already proven against a related Ebola strain as trials continue on a new jab designed specifically for Bundibugyo virus.

Congo has started vaccinating people against Ebola to combat its worst outbreak on record. The campaign launched Thursday in Kisangani, Tshopo province.

The Democratic Republic of Congo (DRC) has begun vaccinating people against Ebola as authorities intensify efforts to contain an outbreak that has become the deadliest Ebola…