The World Health Organisation chief on Tuesday said he was "deeply concerned" by an Ebola outbreak in Congo caused by a rare strain for which there are no approved vaccines or treatments, as the death toll rose to 136.

An Ebola outbreak in the Democratic Republic of Congo has killed more than 80 as authorities warned there was no vaccine for the strain in a crisis that the World Health…

An Ebola outbreak in the Democratic Republic of Congo has killed more than 80 as authorities warned there was no vaccine for the strain in a crisis that the World Health…