Why Ebola isn't 'man-made'

On BBC OS, our audience has been putting questions on Ebola to global health experts.

Some people asked whether the disease is being spread deliberately by the west in order to infect people in Africa.

Dr Ngoy Nsenga from the World Health Organization explains that there's no truth to this rumour.

(Photo: Health worker administers Ebola vaccine in Uganda. Credit: REUTERS/James Akena)