The Bundibugyo strain of Ebola has a fatality rate of up to 50 percent and no approved vaccine as yet.

The virus behind the latest Ebola outbreak is the Bundibugyo virus, which is less common and there is no vaccine or treatment.

Explainer - Bundibugyo is a rare strain of Ebolavirus which kills up to 40 percent of infected people making it less lethal than the more common Zaire strain.

The WHO is investigating potential vaccines and treatments for a potentially lengthy Ebola outbreak in the Democratic Republic of Congo, which has been declared an international…