Mechanism of resistance Antibiotic family Efflux pumps Fluoroquinolones, Aminoglicosides, Tetraciclin, Beta-lactams, Macrolides Inmunity and Bypass Tetraciclines, Trimetropin, Sulfonamides Modification of the target Fluoroquinolones, Rifamicin, Vancomicin, Penicilin, Macrolides, Aminoglicosides Inactivation of the antibiotic by enzymes Beta-lactams, aminoglicosides, Macrolides, Rifamicin

Table 2: Mechanisms of resistance of the different antibiotic families.