The World Health Organisation has temporarily pulled out staff from a laboratory testing for Ebola at Kailahun in eastern Sierra Leone after one of its medical workers there became infected.
"It's a temporary measure to take care of the welfare of our remaining workers," WHO spokesperson Christy Feig told Reuters. "After our assessment, they will return." A WHO spokesman said.
A Swansea doctor who took leave to treat Ebola patients in Africa, is back on the wards after three weeks in isolation.
The first British case of Ebola in the outbreak in West Africa has been confirmed. So how would repatriation work are what are the risks?
In a Facebook Q&A on the Ebola virus for ITV News, an expert discussed risks, potential vaccines and what would happen if it came to the UK.