Recent cases have been in a compact area with limited access and security problems.
Outbreak totals climb to 3,224 infections, including 2,150 fatal ones.
The Johnson & Johnson Ebola vaccine will be rolled out in November, officials say.
The WHO continues to say that progress in curtailing the outbreak must be balanced with caution.
Only 27 health zones are now reporting cases, down from 207 during the peak of the outbreak.
Also, tomorrow the WHO's Ebola emergency committee will meet to discuss the latest outbreak developments.
Today the World Health Organization's (WHO's) online Ebola dashboard shows 1 new case in the Democratic Republic of the Congo (DRC), which raises the outbreak total to 3,206 cases, including 2,143 deaths. A total of 441 suspected cases are still under investigation.
With 4 more cases recorded over the weekend and through today, the Ebola outbreak in the Democratic Republic of the Congo (DRC) now stands at 3,205 cases, including 2,142 deaths. Officials are still investigating 411 suspected cases.
In recent weeks, reports of new cases have slowed significantly, and transmission has shifted to rural villages in North Kivu and Ituri provinces.
Also, global health officials note that 1,000 people in the DRC have now recovered from the disease.
Earlier gaps included multiple Ebola definitions and shortages of personal protective equipment.
