Ebola outbreak: When will a vaccine be developed for the new strain?

The World Health Organization (WHO) has declared that the latest outbreak of a rare strain of the Ebola virus in Democratic Republic of the Congo (DRC) and Uganda is a “public health emergency of international concern”.

No vaccine or treatment exists for the new Bundibugyo strain of Ebola, a disease whose strains have killed more than 15,000 peo...