Table 3 Proportion of resistance of Enterococcus faecalis and Enterococcus faecium isolates originating from faecal samples of healthy cattle and swine in 2010–2015 in Estonia
Antimicrobial | Cut-off values for resistance (mg/L)* | Healthy animals | |||
|---|---|---|---|---|---|
Dairy cattle (n = 51) | Swine (n = 60) | ||||
% | (95% CI) | % | (95% CI) | ||
Ampicillin | > 4 | 0.0 | NA | 1.7 | (− 1.6 to 5.0) |
Erythromycin | > 4 | 21.6 | (10.3 to 21.9) | 26.7 | (15.5 to 37.9) |
Virginiamycin | |||||
E. faecalis | > 32 | 1.9 | (− 1.9 to 5.7) | 5.0 | (− 0.5 to 10.5) |
E. faecium | > 4 | ||||
Gentamycin | > 32 | 1.9 | (− 1.9 to 5.7) | 1.7 | (− 1.6 to 5.0) |
Streptomycin** | |||||
E. faecalis | > 512 | 11.7 | (2.9 to 20.5) | 35.0 | (22.9 to 47.1) |
E. faecium | > 128 | ||||
Kanamycin** | > 1024 | 3.9 | (− 1.4 to 9.2) | 26.7 | (1.5 to 37.9) |
Tetracycline | > 4 | 33.3 | (20.4 to 46.2) | 40.4 | (27.6 to 52.4) |
Chloramphenicol | > 32 | 1.9 | (− 1.9 to 5.7) | 6.7 | (0.8 to 13.3) |
Vancomycin | > 4 | 5.9 | (− 0.63 to 9.4) | 10.0 | (2.4 to 17.6) |
Narasin | > 2 | 3.9 | (− 1.4 to 9.2) | 3.3 | (− 1.2 to 7.8) |
Bacitracin | > 32 | 3.9 | (− 1.4 to 9.2) | 6.6 | (0.4 to 13.3) |
Linezolid | > 4 | 0.0 | NA | 1.7 | (− 1.6 to 5.0) |