U.N. staffer who worked in U.N. has died of Ebola ; spouse being treated . `` Many wealthy countries , with outstanding health systems , may have something to learn as well . '' Doctors Without Borders staffer treated for Ebola is free of virus , group says . Quarantine period over for 48 of seven people , Dallas County judge says . WHO : Nigeria is free of Ebola after 43 cases and 43 deaths .
U.N. staffer who worked in U.N. has died of Ebola ; spouse being treated . Doctors Without Borders staffer treated for Ebola is free of virus , group says . Quarantine period over for 48 of seven people , Dallas County judge says . WHO : Nigeria is free of Ebola after 43 cases and 43 deaths .