David Cameron has called for EU leaders to double their funding in the fight against Ebola to £800 million.
It comes after one of the doctors who discovered the virus, Professor Peter Piot, said the rest of Europe was not doing enough to tackle the epidemic.
Downing Street said the current total contribution from the EU was just £400 million.
The British nurse who contracted Ebola in Sierra Leone, William Pooley, made an emotional appeal to the international community to act during his speech at the conference.
Mr Pooley spoke about the death of a young girl and her brother while he was working in the country, adding: "[My] specific fear is that the horror and misery of these deaths, really fill a well of my despair. I just don't know what happens if that is repeated a million times. So I say at all costs, we can't let that happen".
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.