For the first time this year, all 3 nations see an increase in cases, while the CDC reports on a December lab incident.
A clinical trial of 2 Ebola vaccine candidates was launched today near Liberia's capital, but falling case numbers may pose problems.
UNMEER head calls the situation "perilous," because the disease is still present in 25 of 66 districts in the three outbreak nations.
The international relief group calls for a multimillion-dollar "Marshall Plan" to aid outbreak nations as cases in the region top 22,000.
The proposals aim to improve the agency's ability to handle global health emergencies.
Researchers note how chains of transmission helped Ebola spread in Conakry, Guinea, and 3 CDC reports detail outbreak response efforts.
The first batch of an experimental Ebola vaccine landed today in an outbreak country, with officials projecting a trial launch in Liberia within weeks.
Liberia has 46 new Ebola cases, Sierra Leone 22, and Guinea 2.
Cases continued to drop, with WHO advisors saying complacency is the biggest obstacle to getting to zero.
Ebola will continue to hobble the economies of outbreak nations, but not at levels originally feared.
