Table 5.
Multidrug-resistant E. faecium isolates that were resistant to 4 or 5 antimicrobial classes.
| No. of Antimicrobial Classes Resistant to | Resistance Pattern | Year | Animal Food Type |
|---|---|---|---|
| 4 | CIP-PEN-QDA-TET | 2006 | Pet food |
| 2006 | Pet food | ||
| ERY-KAN-QDA-TET | 2009 | Pet food | |
| CIP-[ERY-TYL]-STR-TET | 2006 | Poultry feed | |
| [ERY-TYL]-[KAN-STR]-QDA-TET | 2010 | Feed for minor species | |
| 2011 | Animal feed (for unspecified animal species) | ||
| 5 | CIP-DAP-ERY-QDA-TET | 2009 | Pet food |
| 2009 | Pet food | ||
| CHL-[ERY-TYL]-QDA-STR-TET | 2005 | Swine feed | |
| CIP-[ERY-TYL]-[KAN-STR]-QDA-TET | 2009 | Feed for minor species |
Antimicrobials in brackets belong to the same antimicrobial classes. Abbreviations for antimicrobials are: CHL, chloramphenicol; CIP, ciprofloxacin; DAP, daptomycin; ERY, erythromycin; KAN, kanamycin; PEN, penicillin; QDA, quinupristin/dalfopristin; STR, streptomycin; TET, tetracycline; and TYL, tylosin.