Table 3.
Frequent resistance patterns in E. faecalis isolates (n = 4218) recovered from cattle, pigs, and chickens between 2010 and 2019 in Korea.
| Animal Species | No. of Antimicrobials | No. of Isolates (%) | Most Frequent Resistance Pattern |
|---|---|---|---|
| Cattle (n = 910) | 0 | 454 (49.9) | |
| 1 | 184 (20.2) | TET (n = 132) | |
| 2 | 66 (7.3) | STR TET (n = 32) | |
| 3 | 46 (5.1) | ERY TET TYL (n = 19) | |
| 4 | 28 (3.1) | CHL ERY TET TYL (n = 10) | |
| 5 | 32 (3.5) | ERY KAN STR TET TYL (n = 17) | |
| 6 | 33 (3.6) | ERY GEN KAN STR TET TYL (n = 7) | |
| 7 | 47 (5.2) | CHL ERY GEN KAN STR TET TYL (n = 24) | |
| 8 | 18 (2.0) | CHL CIP ERY GEN KAN STR TET TYL (n = 6) | |
| 9 | 2 (0.2) | CHL CIP FFC ERY KAN LZD STR TET TYL (n = 1), | |
| CHL FFC DAP ERY GEN KAN STR TET TYL (n = 1) | |||
| Pigs (n = 1556) | 0 | 216 (13.9) | |
| 1 | 186 (12.0) | TET (n = 139) | |
| 2 | 79 (5.1) | STR TET (n = 24) | |
| 3 | 88 (5.7) | ERY TET TYL (n = 45) | |
| 4 | 104 (6.7) | CHL ERY TET TYL (n = 20) | |
| 5 | 133 (8.5) | CHL FFC ERY TET TYL (n = 53) | |
| 6 | 269 (17.3) | CHL FFC ERY STR TET TYL (n = 67) | |
| 7 | 248 (15.9) | CHL FFC ERY KAN STR TET TYL (n = 147) | |
| 8 | 156 (10.0) | CHL FFC ERY GEN KAN STR TET TYL (n = 73) | |
| 9 | 66 (4.2) | CHL CIP FFC ERY GEN KAN STR TET TYL (n = 37) | |
| 10 | 11 (0.7) | CHL CIP FFC ERY GEN KAN STR TET TGC TYL (n = 6) | |
| Chickens (n = 1752) | 0 | 144 (8.2) | |
| 1 | 264 (15.1) | TET (n = 202) | |
| 2 | 143 (8.2) | CIP TET (n = 39) | |
| 3 | 222 (12.7) | ERY TET TYL (n = 83) | |
| 4 | 369 (21.1) | CIP ERY TET TYL (n = 193) | |
| 5 | 277 (15.8) | CIP ERY STR TET TYL (n = 52) | |
| 6 | 141 (8.0) | CIP ERY GEN KAN TET TYL (n = 17) | |
| 7 | 97 (5.5) | CHL CIP ERY KAN STR TET TYL (n = 16) | |
| 8 | 64 (3.7) | CHL CIP ERY GEN KAN STR TET TYL (n = 23) | |
| 9 | 24 (1.4) | CHL CIP FFC ERY GEN KAN STR TET TYL (n = 14) | |
| 10 | 7 (0.4) | CHL CIP FFC ERY GEN KAN LZD STR TET TYL (n = 4) |
Abbreviations: AMP, Ampicillin; CIP, Ciprofloxacin; CHL, Chloramphenicol; DAP, Daptomycin; ERY, Erythromycin; FFC, Florfenicol; GEN, Gentamicin; KAN, Kanamycin; LNZ, Linezolid; SAL, Salinomycin; STR, Streptomycin; TET, Tetracycline; TYL, Tylosin; TGC, Tigecycline; VA, Vancomycin.