A health worker with disinfectant spray walks down a street outside the government hospital in Kenema
Two US citizens helping to treat Ebola in West Africa - a doctor and an aid worker - are in intensive care, having tested positive for the deadly virus. Governments and airports across the region are struggling to curb the spread of the disease.
Nancy Writebol, a missionary with a Christian charity, who had been working as a hygienist in a medical compound in Liberia, was tested positive for Ebola, the relief organization Samaritan's Purse announced on Sunday. Writebol was responsible for detoxifying protective suits worn by visitors to an Ebola isolation center.
A day earlier, the same charity announced that an American doctor, Kent Brantly, 33, working in the same medical institution, had contracted the disease.
"They're both receiving intensive early treatment, but certainly it's a dangerous situation and a frightening situation," spokeswoman for Samaritan's Purse, Melissa Strickland, told AFP.