GENEVA (Reuters) – An outbreak of Ebola in the Democratic Republic of Congo does not yet constitute an international public health emergency and there are strong reasons to think it can be brought under control, the World Health Organization (WHO) said on Friday.

WHO Director General Tedros Adhanom Ghebreyesus told reporters “we have an evolving situation” and said emergency response teams planned to start administering an experimental vaccine to frontline health workers in Congo by Sunday.

(Reporting by Tom Miles and Kate Kelland)