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.
Barack Obama has said that the chances for an Ebola outbreak in the US are extremely low, adding that he is continuing to look at more steps to guard against the virus in America.
The US President added that some countries are not doing enough to help West Africa deal with Ebola and urged speedy action.
He said his administration was working on additional protocols for screening airplane passengers to identify people who might have Ebola and would step up efforts to make medical professionals aware of what to do if they encounter a case.
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.