A girl diagnosed in Uganda may have acquired her infection in a healthcare facility, the WHO says.
Cases have now reached 3,017, and a new hot spot in Ituri province has developed.
The girl's Ebola symptoms were flagged at an entry point in the same district of Uganda where imported cases were detected in June.
In another new development, two experts say more research on Ebola in breastmilk is urgently needed to guide recommendations.
Six more Ebola cases were confirmed in the Democratic Republic of the Congo (DRC) Ebola outbreak, raising the overall total to 2,983, according to numbers reflected today on the World Health Organization (WHO) online Ebola dashboard.
Health officials are still investigating 397 suspected infections. Four more people died from their infections, bringing the fatality count to 1,990.
After establishing its Chronic Wasting Disease (CWD) Program in March, today the University of Minnesota's Center for Infectious Disease Research and Policy (CIDRAP) launched a new online CWD Resource Center for educating the public, hunters, medical and public health professionals, wildlife scientists, veterinarians, and policymakers about the disease.
Disease in hot spots like Beni continues to feed other areas, such as recent cases in South Kivu province.
Officials are bracing for more cases and spread to new areas after a community protest led to the suspension of Ebola response activities.
A mother and child in South Kivu province became infected after contact with a patient from Beni.
The rate of Ebola cases in the Democratic Republic of the Congo (DRC) outbreak shows a slight decline, with Beni and Mandima still remaining as the main hot spots, according to a weekly outbreak and emergencies report from the World Health Organization (WHO) African regional office that covers cases through Aug 17.