Antimicrobial susceptibility patterns of <i>E. faecium</i> and <i>E. faecalis</i> isolates from clinical and water samples.

Amp = ampicillin, Cp = ciprofloxacin, E = erythromycin, Fd = nitrofurantoin, Imp = imipenem, Nxn = norfloxacin, P = penicillin, Rif = rifampin, Te = tetracycline, and Va = vancomycin. aNumbers of strains. Clin = Clinical samples (blood, cerebrospinal fluid, eye, liver, peripheral venous catheter, pleural fluid, sputum, urine, wound, and respiratory system). WL = water from the Xochimilco wetland, GW = groundwater for human use and consumption (wells), WTP = water from a water treatment plant (used for agricultural irrigation). *Strains with intermediate vancomycin resistance.