Table 1.
Antimicrobial resistance rate in E. faecium (n = 3360) and E. faecalis (n = 4218) recovered from cattle, pigs, and chickens between 2010 and 2019 in Korea.
| Resistance Rate % (Number of Isolates) | ||||||||
|---|---|---|---|---|---|---|---|---|
| E. faecium | E. faecalis | |||||||
| Antimicrobials | Cattle | Pigs | Chickens | Subtotal | Cattle | Pigs | Chickens | Subtotal |
| (n = 572) | (n = 1385) | (n = 1403) | (n = 3360) | (n = 910) | (n = 1556) | (n = 1752) | (n = 4218) | |
| Ampicillin | 0.3 (2) | 0.1 (1) † | 11.4 (160) # | 4.8 (163) | 0 (0) | 0.1 (1) | 0.1 (2) | 0.1 (3) |
| Chloramphenicol | 2.3 (13) * | 6.9 (95) † | 18.8 (264) # | 11.1 (372) | 12.1 (110) * | 50.0(778) † | 20.9 (367) # | 29.8 (1255) |
| Ciprofloxacin | 23.1 (132) * | 13.6 (189) † | 67.9 (953) # | 37.9 (1274) | 7.9 (72) * | 13.7 (213) † | 48.6 (852) # | 27.0 (1137) |
| Daptomycin | 5.6 (32) | 6.9 (95) † | 11.1 (156) # | 8.4 (283) | 1.3 (12) | 0.6 (10) | 0.6 (10) # | 0.8 (32) |
| Erythromycin | 19.9 (114) * | 31.5 (436) † | 59.5 (835) # | 41.2 (1385) | 20.4 (186) * | 67.1 (1044) † | 63.0 (1104) # | 55.3 (2334) |
| Florfenicol | 1.6 (9) * | 8.4 (116) † | 18.7 (262) # | 11.5 (387) | 4.5 (41) * | 45.8 (712) † | 14.3 (250) # | 23.8 (1003) |
| Gentamicin | 0.2 (1) | 0.7 (10) † | 2.4 (33) # | 1.3 (44) | 7.5 (68) * | 18.9 (294) † | 10.3 (181) # | 12.9 (543) |
| Kanamycin | 6.3 (36) * | 9.5 (132) | 10.1 (142) # | 9.2 (310) | 13.4 (122) * | 44.3 (690) † | 21.3 (374) # | 28.1 (1186) |
| Linezolid | 0.3 (2) | 0 (0) † | 5.2 (73) # | 2.2 (75) | 0.2 (2) * | 1.4 (22) | 1.1 (20) # | 1.0 (44) |
| Quinupristin/dalfopristin | 8.7 (50) | 11.9 (165) † | 28.0 (393) # | 18.1 (608) | ND | ND | ND | ND |
| Salinomycin | 0.2 (1) | 0.4 (5) † | 11.0(154) # | 4.8 (160) | 0 (0) | 0 (0) † | 2.8 (49) # | 1.2 (49) |
| Streptomycin | 6.8 (39) * | 12.4 (172) † | 30.8 (432) # | 19.1 (643) | 18.8 (171) * | 50.9 (792) † | 31.8 (558) # | 36.1 (1521) |
| Tetracycline | 25.9 (148) * | 20.1 (279) † | 61.7 (866) # | 38.5 (1293) | 41.8 (380) * | 78.3 (1219) | 76.1 (1333) # | 69.5 (2932) |
| Tigecycline | 6.8 (39) | 5.8 (81) | 5.5 (77) | 5.9 (197) | 7.5 (68) * | 11.5 (179) | 10.6 (185) # | 10.2 (432) |
| Tylosin | 4.9 (28) * | 13.8 (191) † | 53.0 (743) # | 28.6 (962) | 20.1 (183) * | 66.6 (1036) | 63.6 (1115) # | 55.3 (2334) |
| Vancomycin | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| MDR | 8.6 (49) * | 15.6 (216) † | 60.9 (854) # | 33.3 (1119) | 19.7 (179) * | 63.6 (990) † | 59.7 (1046) # | 52.5 (2215) |
* p < 0.05 compared with the resistance rates in pigs, # p < 0.05 compared with the resistance rates in chickens, and † p < 0.05 compared with the resistance rates in pigs.