With 48 cases in 3 days in the DR Congo, totals have grown to 2,168 cases, including 1,440 deaths, for a 66% fatality rate.
The panel expressed serious worry over the threat to the region and over funding.
The grandmother of the 5-year-old boy identified in Uganda has also died, and the family cluster is at 8 cases.
A boy confirmed infected yesterday in Uganda has died, and 2 relatives have Ebola.
The patient is 5, and at least two of his family members also have Ebola symptoms.
The outbreak has now reached 2,062 infections, with deaths climbing to 1,390.
The agency highlights earlier case-contact registration and a drastically lower rate of healthcare-related disease spread.
"We get to adapt… and make the response the best we can make it," the WHO's Mike Ryan, MD, says.
Seventeen new infections and 11 new fatalities raise outbreak totals to 2,025 cases and 1,357 deaths.
The groups welcomed new commitments to humanitarian aid, but said a response reset is needed.
