The Ebola Outbreak that struck Guinea in march 2014 later spread to Liberia, Sierra Leone and Nigeria causing at the beginning of august 1711 infections and 932 deaths. Aid organisations are taking emergency measures to contain the spread of this highly infectious and deadly virus. It is crucial for this work to drive rapidly through the territory and quickly locate those infected. Detailed and accurate maps of the region are vital, which is why organisations such as MSF, CartONG and Red Cross are working closely with the Humanitarian OpenStreetMap Team to coordinate our mapping community and deliver maps to field workers.
We are coordinating on the '2014 West Africa Ebola Response' wiki page