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.
An experimental treatment for the Ebola virus will be explored by a panel of medical ethics experts next week, according to the World Health Organisation (WHO).
The organisation's assistant director-general, Marie-Paule Kieny said: "We are in an unusual situation in this outbreak. We have a disease with a high fatality rate without any proven treatment or vaccine."
She added: "We need to ask the medical ethicists to give us guidance on what the responsible thing to do is."
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.