The UN special envoy on Ebola says he hopes that the outbreak can be brought under control within three months.
David Nabarro said the number of Ebola cases was currently increasing exponentially, but greater community awareness would help contain the virus.
People were becoming aware that isolating those infected was the best way to prevent transmission, he added.
The BBC reports that so far, there have been more than 8300 confirmed and suspected cases of Ebola, and at least 4033 deaths.
Most fatalities - 4024 - have occurred in the west African countries of Guinea, Liberia and Sierra Leone. Cases have also been reported in Nigeria, Senegal, Spain and the US.
Mr Nabarro said that the number of new cases was "quite frightening", as the spread of the disease was currently accelerating.
At the beginning, many west African communities did not understand that the outbreak was an infectious disease, he said.
"I think we've got much better community involvement [now] which leads me to believe that getting it under control within the next three months is a reasonable target," he said.
"By under control I mean... the numbers of new cases each week diminishes compared with the previous week to the point where there is no new transmission."