Summary of phenotypic data for V. cholerae O1 isolates.

* Isolates were determined to be resistant to antimicrobial agents at the following MIC breakpoints: ampicillin (Amp), ≥16 μg/ml; ceftriaxone (Cro), ≥2 μg/ml; ≥16 μg/ml; cotrimoxazole (Cot), ≥4 μg/ml; chloramphenicol (Chl), ≥16 μg/ml; nalidixic acid (Nal), ≥32 μg/ml; ciprofloxacin (Cip), ≥2 μg/ml; tetracycline (Tet), ≥8 μg/ml; erythromycin (Ery), ≥4 μg/ml; nitrofurantoin (Nit), ≥64 μg/ml.Summary of phenotypic data for V. cholerae O1 isolates.