The country recorded its first Ebola case on October 5.
NIH funded a record number of early-stage investigators but fewer awards overall.
The most recent from the DRC shows 8,665 confirmed and 4,178 deaths, with a case-fatality rate of 48%.
Officials are seeking fellow passengers on the flight from Kampala, Uganda, to Nairobi, Kenya.
An aid worker was evacuated to Europe after testing positive for the virus.
The WHO warns there are still too many deaths occurring in the community.
The high fatality rate, along with the large proportion of community deaths, highlights problems with timely case detection and healthcare access.
The largest-ever study on this topic systematically tested how 16 hypothetical social and environmental factors influence where outbreaks occur.
Only 85% of identified case contacts are under follow-up.
The vaccine targets Zaire strain of Ebola, but many hope there will be cross-protection against the Bundibugyo strain.
