Vaccine so far shows 100% efficacy in individuals, but more conclusive evidence is needed on its capacity to protect populations.

Just 129 doctors in the whole of Sierra Leone which has a population of 6 million.

New report 'Pushed to the Limit and Beyond' highlights the shortcomings of the global response to the Ebola crisis one year on.

Missionary Sisters of the Holy Rosary nun warns epidemic is not yet over and there can be no complacency until there are zero cases.