Fig. 2

The evolution of Tuberculosis drug resistance within the 9-year period. a The evolution of MDR-TB patients from newly infected patients, and (b) The evolution of MDR-TB from retreatment patients. The total number in each case includes the MDR cases. MDR-TB: multidrug resistant Tuberculosis; DST, drug susceptibility testing. While the absolute number of MDR patients remains relatively stable, the proportion varies widely because recruitment rates of new patients were variable. In 2006 and 2009, no MDR-TB patient was identified within recruited patients, and in 2010, no new TB patients were recruited and all retreatment patients tested were MDR