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 number of Ebola cases in West Africa will rise above 9,000 this week as the epidemic continues to expand geographically in Guinea, Sierra Leone and Liberia, the World Health Organization (WHO) has said.
The death toll has reached 4,447 from a total of 8,914 cases since the outbreak began in March, WHO assistant director general Bruce Aylward said.
While there are signs of rates of infection slowing in some of the worst-hit areas, Aylward said the disease has now reached "more districts, counties and prefectures" than it had the previous month.
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.