South Africa, May 18 -- The WHO said the outbreak, caused by the Bundibugyo virus, did not meet the criteria of a pandemic emergency, but there was a high risk the disease could spread further to countries sharing land borders with the DRC.

On Sunday, the UN health agency said in a statement that 80 suspected deaths, eight laboratory-confirmed cases and 246 suspected cases had been reported as of Saturday in the DRC's Ituri province across at least three health zones, including Bunia, Rwampara and Mongbwalu.

One case was confirmed in the eastern Congolese city of Goma, a statement by M23 rebels said.

At least six Americans in the DRC have been exposed to the Ebola virus, with three exposures deemed high risk, CBS News reported, citing...