TABLE 2.
+, synergy; MEM, meropenem; CST, colistin; ATM, aztreonam; FOF, fosfomycin; RIF, rifampin. Synergy (≥2 log10 reduction in CFU/ml after 24 h compared with the most effective individual drug) and bactericidal effect (≥3 log10 decrease in CFU/ml after 24 h compared with the starting inoculum) is depicted. Bactericidal effect is highlighted in gray.