Ebola cases climb,
Four thousand in Congo's heart—
Door-to-door teams act.
Four thousand in Congo's heart—
Door-to-door teams act.
Cases have passed 4,000 and health watchdog plans to go door to door to find patients in major response escalationThe virus causing a massive outbreak of Ebola in the Democratic Republic of the Congo could be mutating, health officials fear, as confirmed cases pass 4,000.Africa’s…