Thai scientists claim to have created an antibody against the Ebola virus that is "more effective" than all current treatments.
The breakthrough is still awaiting both animal and human trials but the World Health Organisation has made a request to test it, Thai media are reporting.
The researchers say it will take a year for an experimental vaccine to be developed. That could be shortened with more funding, something that would likely come from WHO backing.
According to researchers at Siriraj Hospital in Thailand the new antibody is small enough to enter diseased cells and destroy the Ebola proteins inside. It's also said to be harmless to humans as it's developed from human cells.
Ebola has killed more than 3000 people in West Africa and no licensed vaccine or treatment currently exists. The outbreak is the worst since the virus was discovered in 1976.
Will Ebola spread?
Scientists and virus experts say the Ebola virus could reach the United Kingdom and France by the end of the month.
Ebola spread patterns and airline traffic data were analysed to predict that by October 24 there is a 75% chance of the disease reaching France and a 50% chance it will reach the UK.
"It's really a lottery," Derek Gatherer from Britain's Lancaster University said.
"If this thing continues to rage on in West Africa and indeed gets worse, as some people have predicted, then it's only a matter of time before one of these cases ends up on a plane to Europe," Mr Gatherer said.