The British nurse who survived Ebola after contracting the virus in Sierra Leone has returned to the West African country to continue treat others who are infected.
William Pooley, 29, said he was delighted to be back in the country and would attempt to prevent "as many unnecessary deaths as possible".
The 29-year-old, who was the first confirmed Briton to contract Ebola and was flown back to UK for treatment in August, arrived in the capital Freetown on Sunday.
He will now resume work in an Ebola isolation unit run by UK medical staff.
Mr Pooley said: "The real emergency is in West Africa, and the teams out there need all the support we can give them.
"I am now looking forward to getting back out there and doing all I can to prevent as many unnecessary deaths as possible."
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.