Fig. 3

Contributions of the different causal pathways leading to MDR/RR-TB at re-treatment in the seven WHO regions. Results are expressed as percentages of the total burden of MDR/RR-TB at re-treatment. For each region, the mean values and the intervals containing 95% of the values obtained from simulation of 1,000,000 sets of parameters are presented by the bars and the lines respectively. WHO regions are designated as following: African region (AFR), American region (AMR), Eastern Mediterranean region (EMR), European region (EUR), South East Asian region (SEAR), Western Pacific region (WPR) and Global region (GLOBAL)