Nigeria Ebola patient flown to Switzerland, Congo health worker killed as 4 countries deal with outbreak

Officials on opposite sides of the African continent are trying to determine how a woman diagnosed with Ebola in Nigeria's capital last week contracted the deadly virus without having visited the Democratic Republic of Congo — the epicentre of one of the worst human outbreaks of…

A woman being treated for Ebola in Nigeria has been medically evacuated to Switzerland, authorities say.