`` Many wealthy countries , with outstanding health systems , may have something to learn as well . '' U.N. staffer who worked in Sierra Leone has died of Ebola ; spouse being treated . Doctors Without Borders staffer treated for Ebola is free of virus , group A . Quarantine period over for most of the people , Lagos County Hospital says . WHO : Nigeria is free of Ebola after 19 cases and seven deaths .
U.N. staffer who worked in Sierra Leone has died of Ebola ; spouse being treated . Doctors Without Borders staffer treated for Ebola is free of virus , group A . Quarantine period over for most of the people , Lagos County Hospital says . WHO : Nigeria is free of Ebola after 19 cases and seven deaths .