According to the World Health Organization (WHO), 80 percent of new Ebola cases spreading in Eastern Congo are linked to unknown transmission chains. Despite large-scale measures being implemented, the epidemic is developing faster than the level of monitoring by medical personnel.
Situation with the virus in Congo
Since May, an unusual strain of the Ebola virus has been observed in Congo, for which there is currently no approved treatment or vaccine. The Africa Centre for Disease Control reports that this is the fastest-developing Ebola outbreak on the continent.
Unknown transmission chains
A WHO representative told the Associated Press that as of today, 80 percent of new cases are outside the contact list, indicating transmission through unknown routes.