Geographical location of the reinforced surveillance network and participating health districts.

The reinforced surveillance network operated in the West region of Cameroon between January 2014 and June 2016. The surveillance network was managed by the Centre Pasteur of Cameroon, Yaoundé, and included 11 of the West region’s 20 health districts (indicated by green shading). Post-exposure prophylaxis (PEP) was available to exposed individuals at the ARC in Bafoussam and at some pharmacies throughout the region.