The World Health Organization (WHO) said on Tuesday an Ebola outbreak in northeastern Democratic Republic of Congo could worsen rapidly because of attacks by armed groups, community resistance and the geographic spread of the disease.
At least 100 people have died in the outbreak, out of 150 cases in North Kivu and Ituri provinces.
"We are now extremely concerned that several factors may be coming together over the next weeks and months to create a potential perfect storm," the WHO's head of emergency response, Peter Salama, told a news conference in Geneva.