“And fifth, this epidemic is caused by the Bundibugyo virus, a species of Ebola virus for which there are no approved vaccines ...

"There are significant uncertainties to the true number of infected persons and geographic spread," the Geneva-based body warned

More than 300 suspected cases and 88 deaths have been reported. The outbreak is caused by the rare Bundibugyo virus, which has no approved treatments or vaccines.

Cases set to increase, WHO warns, with infections appearing in urban centres and neighbouring Uganda