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 appointed an Ebola "czar" to help tackle breaches of protocol which took place in Texas, where the killer virus first appeared on US soil.
The President has chosen Ron Klain, a lawyer who had served as chief of staff to Vice Presidents Joe Biden and Al Gore, to oversee the US response.
The White House also said it would send senior personnel to Dallas, Texas, to help federal, state and local officials there trying to identify and monitor people who came in contact with three people who contracted the disease.
Thomas Eric Duncan, the first person diagnosed with the disease in the United States, died last week.
Two nurses who were on the team caring for Duncan have now contracted it and are being monitored.
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.