Geographical location of the outbreak (A), and epidemic curve of measles suspected cases (B), Ouham Prefecture, Central African Republic, 2011. The outbreak took place in the Ouham Prefecture in northern CAR. The main outbreak foci and links between them are highlighted in red. Suspected cases were reported between the 10th to the 35th epidemiological weeks of 2011. The 2 subnational SIA conducted from March 28 to April 1, 2011 (epi week 13) in Maitikoulou, Markounda Sub-prefecture (1st SIA) and from April 25 to April 29 (epi week 17), 2011 in Batangafo Sub-prefecture (2nd SIA) were represented by arrows. Blank map has been produced by UNDP on behalf of the Humanitarian and Development Partnership Team in Central African Republic (HDPT CAR) | Bangui, Central African Republic | 6 May 2008 | http://www.hdptcar.net. Map sources are GAUL, SIGCAF, HDPT CAR. Reprinted with the permission from the UNDP. The findings, interpretations and conclusions are strictly those of the authors and do not necessarily represent the views of UNDP or United Nations Member States.