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.
Sierra Leone's Health Minister has been dismissed over her handling of the Ebola epidemic.
President Ernest Bai Koroma fired the minister, Miatta Kargbo, saying she was removed "to create a conducive environment for efficient and effective handling of the Ebola outbreak".
She will be replaced by her deputy, Dr Abubakarr Fofanah.
The Ebola virus has killed more than 400 people in Sierra Leone since the outbreak took hold.
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.