TABLE 1.
MICs (mg/L) of antimicrobials with undefined epidemiological cut-offs for E. cloacae complex isolates tested negative for mcr-1 to mcr-9.
| Isolate | Species | Origin | AMP | CHL | NAL | SMX | TMP | ETP | FOX |
|
Poultry slaughterhouses | |||||||||
| C-04/10-01 | Enterobacter asburiae | Effluent in-house WWTP | >64 | ≤8 | >128 | ≤8 | ≤0.25 | 0.03 | >64 |
| C-04/02-01 | E. asburiae | Transport crates | 16 | 16 | 8 | >1024 | 2 | 0.03 | >64 |
| C-04/02-03 | E. asburiae | Transport crates | 32 | ≤8 | ≤4 | ≤8 | 0.5 | 0.03 | >64 |
| C-04/02-16 | E. asburiae | Transport crates | 8 | 16 | ≤4 | 256 | 1 | 0.03 | >64 |
| C-04/02-22 | E. asburiae | Transport crates | 8 | 16 | 16 | ≤8 | 0.5 | 0.03 | >64 |
| C-04/05-23 | E. asburiae | Influent in-house WWTP | 16 | ≤8 | >128 | ≤8 | ≤0.25 | 0.03 | >64 |
| C-04/05-24 | E. asburiae | Influent in-house WWTP | 16 | ≤8 | 64 | ≤8 | 0.5 | 0.03 | >64 |
| C-04/05-28 | E. asburiae | Influent in-house WWTP | 16 | 16 | 16 | 512 | 1 | 0.03 | >64 |
| C-04/05-31 | E. asburiae | Influent in-house WWTP | 8 | ≤8 | >128 | ≤8 | ≤0.25 | ≤0.015 | >64 |
| C-04/05-33 | E. asburiae | Influent in-house WWTP | 4 | ≤8 | >128 | ≤8 | ≤0.25 | ≤0.015 | >64 |
| C-04/05-35 | E. asburiae | Influent in-house WWTP | 8 | ≤8 | >128 | ≤8 | 0.5 | ≤0.015 | >64 |
| C-04/05-41 | E. asburiae | Influent in-house WWTP | 8 | ≤8 | >128 | ≤8 | ≤0.25 | ≤0.015 | >64 |
| C-04/05-42 | E. asburiae | Influent in-house WWTP | 16 | ≤8 | 16 | ≤8 | ≤0.25 | ≤0.015 | >64 |
| C-04/05-43 | E. asburiae | Influent in-house WWTP | 8 | ≤8 | >128 | ≤8 | ≤0.25 | 0.06 | >64 |
| C-04/05-44 | E. asburiae | Influent in-house WWTP | 16 | ≤8 | 16 | ≤8 | ≤0.25 | ≤0.015 | >64 |
| C-04/06-04 | E. asburiae | Effluent in-house WWTP | 32 | ≤8 | >128 | ≤8 | ≤0.25 | 0.03 | >64 |
| C-04/06-07 | E. asburiae | Effluent in-house WWTP | 32 | ≤8 | ≤4 | ≤8 | ≤0.25 | 0.12 | >64 |
| C-04/05-29 | Enterobacter hormaechei | Influent in-house WWTP | >64 | ≤8 | >128 | ≤8 | ≤0.25 | 0.03 | >64 |
| C-04/06-05 | E. hormaechei | Effluent in-house WWTP | >64 | ≤8 | >128 | ≤8 | ≤0.25 | 0.03 | >64 |
| C-04/06-01 | Enterobacter kobei | Effluent in-house WWTP | 32 | 16 | ≤4 | ≤8 | ≤0.25 | 0.03 | >64 |
| 01/02-22 | E. asburiae | Transport crates | >64 | ≤8 | ≤4 | ≤8 | ≤0.25 | 0.03 | >64 |
| 04/02-02 | E. asburiae | Transport crates | >64 | ≤8 | >128 | ≤8 | 1 | 0.5 | >64 |
| 04/02-04 | E. asburiae | Transport crates | >64 | 16 | 16 | 32 | 1 | 1 | >64 |
| Pig slaughterhouses and mWWTPs | |||||||||
| C-03/02-01 | E. asburiae | Influent biological WWTP | 16 | ≤8 | ≤4 | ≤8 | ≤0.25 | ≤0.015 | >64 |
| C-05/10-24 | E. asburiae | Influent municipal WWTP | 8 | ≤8 | ≤4 | ≤8 | ≤0.25 | 0.03 | >64 |
| C-05/10-25 | E. asburiae | Influent municipal WWTP | 64 | ≤8 | 8 | ≤8 | ≤0.25 | 0.03 | >64 |
| C-03/09-03 | E. cloacae | Producing facilities | 16 | ≤8 | ≤4 | ≤8 | ≤0.25 | 0.03 | >64 |
| 05/03-11 | Enterobacter aerogenes | Pig Transport Trucks | >64 | 16 | ≤4 | >1024 | >32 | 0.06 | >64 |
| 03/10-33 | E. asburiae | Influent municipal WWTP | >64 | ≤8 | >128 | >1024 | >32 | 2 | >64 |
| 03/12-25 | E. asburiae | On-site preflooder downstream | >64 | ≤8 | >128 | >1024 | >32 | 0.12 | >64 |
AMP, ampicillin; CHL, chloramphenicol; NAL, nalidixic acid; SMX, sulfamethoxazole; TMP, trimethoprim; ETP, ertapenem; FOX, cefoxitin.