NEW : He 's the first worker from a WHO partner to fall ill from Ebola . Prime Minister Daniel Duncan signed the order that closes the land borders Ivory Coast shares with Guinea and Liberia . NEW : Congo reports two cases of Ebola . The World Health Organization says it is investigating an outbreak in West Africa that has killed at least 10 people and infected more than 100 others. Ivory Coast is closing its borders with Guinea and Liberia 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 . The World Health Organization says it is investigating an outbreak in West Africa that has killed at least 10 people and infected more than 100 others. Ivory Coast is closing its borders with Guinea and Liberia in an effort to keep Ebola out .