Evaluation of tuberculosis control by periodic or routine susceptibility testing in previously treated cases.


SETTING A national tuberculosis control programme (NTP) disposing of baseline drug resistance rates and using 2EHRZ/6TH in the treatment of new cases. OBJECTIVE To estimate the extent of drug resistance created by the NTP. DESIGN Resistance rates in 2EHRZ/6TH failure and relapse cases were compared to baseline, and resistance profiles of repeat isolates… (More)


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