Table 2 Characteristics of ESBL or AmpC-positive Salmonella isolates and transformed or transconjugated E. coli isolates analyzed in this study
Serovar | Antimicrobial susceptibility testing | ASSuT | PCR | PBRT | |||||
|---|---|---|---|---|---|---|---|---|---|
AMX (mg/L) | CFPM (mg/L) | CAZ (mg/L) | CTX (mg/L) | FOX (diameter zone) | Additional resistances | ||||
S. rissen | >8 | ≤1 | >4 | ≥2 | 7 mm | GEN, STR, STX, TET | Positive | blaCMY-2 | IncA/C |
monophasic S. typhimurium (1,4,[5],12:i:-) | >8 | ≥4 | >4 | ≥2 | 26 mm | KAN, GEN, STR, STX, TET, TMP | Positive | blaCTX-M-15 | IncFIA, IncFIIS |
S. Paratyphi B | >8 | ≥4 | >4 | ≥2 | 26 mm | nd | Negative | blaTEM-52 | I1-Ig |
E. coli transformed blaCTX-M-15 | >8 | ≥4 | >4 | ≥2 | – | nd | nd | blaCTX-M-15 | IncFIA |
E. coli transformed blaTEM-52 | >8 | ≥4 | >4 | ≥2 | – | nd | nd | blaTEM-52 | I1-Ig |
E. coli J53 blaCMY-2 | >8 | ≤1 | >4 | ≥2 | – | nd | nd | blaCMY-2 | IncA/C |
E. coli J53 blaCTX-M-15 | >8 | ≥4 | >4 | ≥2 | – | nd | nd | blaCTX-M-15 | IncFIA |
E. coli J53 blaTEM-52 | >8 | ≥4 | >4 | ≥2 | – | nd | nd | blaTEM-52 | I1-Ig |