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. 2012 Nov;56(11):5790–5793. doi: 10.1128/AAC.01476-12

Fig 1.

Fig 1

Representative results from the resazurin checkerboard assay. Depicted are the wells containing H37Rv growing in MIC, one-half the MIC, and one-quarter the MIC of BTZ043 (vertical) in combination with MIC, one-half the MIC, and one-quarter the MIC of rifampin (A), moxifloxacin (B), and TMC207 (C). Viability is determined by resazurin (blue), which is converted to pink (resorufin) by viable bacteria. Images clearly show that combinations of one-quarter the MIC of BTZ043 with one-quarter the MIC of rifampin or moxifloxaxin allows bacterial growth, while no resazurin turnover is seen with one-quarter the MIC of BTZ043 and one-quarter the MIC of TMC207.