Munim, A. Rajab, Y. Barker, A. Daniel, M. Williams, B. 2008 To estimate the annual risk of tuberculosis TB infection ARTI in Somalia a tuberculin survey was conducted in February March 2006. Stratified cluster sampling was carried out within the 18 regions and 101 randomly selected primary schools. Tuberculin testing was done in 10 680 grade 1 schoolchildren. Transverse tuberculin reaction size was measured 72 hours later. The number of children with a satisfactory test read was 10 364. The overall BCG coverage was 54 . Based on frequency distribution of tuberculin reaction sizes, the ARTI in Somalia ...