A suspected Ebola patient has been admitted to a hospital in northern California, health officials have said.
Blood samples will now be tested by federal disease control experts.
If the patient tests positive, it would be the first confirmed case of Ebola in the United States, aside from two American relief workers who flew back for treatment after contracting the disease in Liberia.
UK trials of a vaccine for the Ebola virus began today - but some experts complain that the response has been a long time coming.
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?