NEW : He 's the first worker from a WHO partner to fall ill from Briton . NEW : Liberia reports four cases of Ebola . Separately , a Briton infected in Sierra Leone is being flown home . Ebola is closing its borders with Guinea and Briton in an effort to keep Ebola out .
NEW : He 's the first worker from a WHO partner to fall ill from Ebola . NEW : Congo reports two cases of Ebola . Separately , a Briton infected in Sierra Leone is being flown home . Ivory Coast is closing its borders with Guinea and Liberia in an effort to keep Ebola out .