'One million Ebola vaccine doses by end of 2015' - WHO
24 October 2014 Last updated at 21:38 BST
One million doses of an experimental Ebola vaccine will be produced by the end of 2015, the World Health Organization (WHO) has announced.
It said "several hundred thousand" would be produced in the first half of the year.
And vaccines could be offered to health workers on the frontline in West Africa as soon as December 2014.
Sophie Hutchinson reports.