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Gel electrophoretic bands of ESBL and quinolone-resistant genotypes (qnrB, CTX-M, qepA, and aac(6)-lb-cr). Letters: M—DNA ladder, N—negative control, and P—positive control. Positive samples are numbers 1, 10, 12, 13, and 16 (qnrB, aac(6)-lb-cr, and qepA) and samples 1, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, and 20 (CTX-M).
