The Ebola death toll has risen to 4,546, the World Health Organisation reported today.
This is almost half of the total 9,191 cases that have been reported in Guinea, Liberia and Sierra Leone since the start of the current outbreak.
As it reaches seven months since the Ebola outbreak started we take a look at the timeline of events leading up to the spread of the virus.
More than 100 British personnel are arriving in Sierra Leone to combat the Ebola outbreak in West Africa. Here's what else the UK is doing.
A man has been filmed helping an Ebola patient onto a plane without wearing any protective equipment.