Fig. 2

Antimicrobial Synergy Study – Checkerboard Testing Abbreviations: AMK, amikacin; AZT, aztreonam; CAZ, ceftazidime; CPFX, ciprofloxacin; CL, colistin; MEPM, meropenem; PIPC, piperacillin; RFP, rifampicin. Representation of a checkerboard assay where the synergistic effect of two antibiotics is depicted. In this illustration, “no growth” is represented in white, and “growth” is represented in black