At first, each of the samples was cultured in the Lowenstein-Johnson medium, then after the growth, 3 distinct colonies from each sample were subcultured individually in the Lowenstein-Johnson medium to expand further growth. BDQ was purchased from Sigma-Aldrich (St. Louis, MO, USA). The objective of this subculturing process was to assess BDQ resistance using the Microplate Alamar Blue Assay (MABA) method. Alamar Blue was purchased from AbD Serotec (Oxford, UK).
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