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. 2016 Nov 28;16:714. doi: 10.1186/s12879-016-2060-7

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© The Author(s). 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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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