France, July 15 -- "We think, with some of our support and modelling, the scale of the outbreak is at least 2-4 times the number of cases we are finding," Dr Chikwe Ihekweazu, Executive Director of the WHO's Health Emergencies Programme, told reporters in Geneva after a visit to eastern Democratic Republic of Congo. Third largest outbreak

According to the DR Congo's latest official figures, the haemorrhagic fever has infected more than 1,960 people and killed over 700 since it was detected two months ago. Cases have also been identified in neighbouring Uganda.

WHO emergencies director added that its modelling shows it is already one of the largest Ebola outbreaks recorded, with the virus spreading faster than ever seen before.

"This is...