Fig 2.

Characteristics and antimicrobial susceptibility profiles of ESBL- and carbapenemase-producing Enterobacteriaceae isolated from Swiss rivers and lakes. Symbols: black square, positive result or resistant to a specific antimicrobial agent; white square, negative result or susceptible to a specific antimicrobial; gray square, intermediate toward a specific antimicrobial. Abbreviations: AM, ampicillin; AMC, amoxicillin-clavulanic acid; CF, cephalothin; CTX, cefotaxime; CIP, ciprofloxacin; GM, gentamicin; TE, tetracycline; S, streptomycin; C, chloramphenicol; K, kanamycin; NA, nalidixic acid; SMZ, sulfamethoxazole; TMP, trimethoprim.