Researchers say they're a step closer to developing an Ebola vaccine, with a Phase 1 trial showing promising results, but it will be months at the earliest before it can be used in the field.
The World Health Organization says 600 new cases of Ebola were reported in the most-affected countries in the past week, more than half of them in Sierra Leone.
The U.S. program that requires weeks of monitoring for travelers from African countries with Ebola reaches the one-month mark Thursday. And so far, no cases of the disease have turned up.
The European Commission called for 5,000 doctors to be sent from EU states to combat west Africa's Ebola epidemic, a European source with knowledge of the matter said on Wednesday.
Nine people have died in Benin from Lassa fever, a viral disease common in West Africa with symptoms similar to Ebola, the country's health minister said.