Fig 1.

Restriction fragment length polymorphism (RFLP) analysis of blaCMY-2 plasmids, associated characteristics, and source data. Salmonella enterica serovars other than those represented included Agona, Bredeney, Derby, Enteritidis, Infantis, Mbandaka, Reading, and Thompson and monophasic variants I:4,(5),12:r:−, I:4,12:i:−, I:6,8:eh:−, I:RoughO:r:1,2, and I:RoughO:fgs:−. Resistance to streptomycin was not assessed, as the recipient strain was resistant to streptomycin. AMC, amoxicillin-clavulanic acid; AMP, ampicillin; FOX, cefoxitin; TIO, ceftiofur; CRO, ceftriaxone; CHL, chloramphenicol; GEN, gentamicin; KAN, kanamycin; SOX, sulfisoxazole; TCY, tetracycline; SXT, trimethoprim-sulfamethoxazole. Numbers of isolates are indicated where more than one plasmid was identified with the same restriction profile. *, one of these plasmids conferred resistance to SOX but not to TCY and SXT; †, the replicon types of this plasmid were A/C and FIIs; ‡, the replicon type of one of three plasmids in this cluster was unidentified (Unid.).