Table 2.
Antimicrobial resistance and virulence properties of the E. faecalis isolated in this study.
| Isolate ID | Sources | Antibiotic resistance | Virulent genes | |||
|---|---|---|---|---|---|---|
| Phenotypes | Genotypes | MIC (μg/ml) | ||||
| GEN | TE | |||||
| 2006 | MCCM | ≥8.0 | <1.0 | ace, fsrB, fsrC, pil | ||
| 2008 | MCCM | <2.0 | <1.0 | ace, fsrB, fsrC, pil | ||
| 2020 | MCCM | AZM, TE | tetK | ≥16 | ≥64 | ace, fsrB, fsrC, pil |
| 2024 | MCCM | ≥16 | <1.0 | ace, fsrB, fsrC, pil | ||
| 2029 | MCCM | <2.0 | <1.0 | ace, fsrB, fsrC, pil | ||
| 2032 | MCCM | AZM, TE | tetL, aph(3″) − IIIa | ≥16 | ≥128 | ace, fsrB, fsrC, sprE, pil |
| 2073 | MCCM | TE | aacC4, tetM, | ≥8.0 | ≥64 | agg, pil |
| 2081 | MCCM | TE | aacC2, tetM | ≥8.0 | ≥64 | pil |
| 2091 | MCCM | AZM | aacC4, vanB | ≥8.0 | <1.0 | fsrB, gelE, sprE, pil |
| 20105 | MAHC | AZM | aacC4 | ≥16 | <1.0 | fsrB, gelE, sprE, pil |
MCCM: milk of cattle with clinical mastitis; MAHC: milk of apparently healthy cattle; AZM: azithromycin; GEN: gentamicin; TE: tetracycline.