Table 2. Antimicrobial resistance and virulence genotypes of methicillin-resistant Staphylococcus aureus strains (n = 44) isolated from veterinarians in Australia.
| Isolate | Origin | Resistance genotype | Virulence genotype |
|---|---|---|---|
| Clonal Complex 1 | |||
| 698 | STU | blaZ-I-R, sdrM | seh, sak, chp, scn |
| Clonal Complex 5 | |||
| 616 | CAP | blaZ-I-R, erm(A), aadD, sdrM, fosB | sed, seg, sei, sej, sem, sen, seo, seq, ser, seu |
| Clonal Complex 8 | |||
| 580 | CAP | blaZ-I-R, aacA-aphD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 673 | CAP | blaZ-I-R, erm(C), aacA-aphD, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 713 | EP | blaZ-I-R, aacA-aphD, dfrA, tet(M), sdrM, fosB | seb, sek, seq |
| 699 | EP | blaZ-I-R, aacA-aphD, aadD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 718 | EP | blaZ-I-R, erm(C), aacA-aphD, aadD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 727 | EP | blaZ-I-R, aacA-aphD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 741 | EP | blaZ-I-R, erm(C), aacA-aphD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 761 | EP | blaZ-I-R, aacA-aphD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 783 | EP | blaZ-I-R, aacA-aphD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 787 | EP | blaZ-I-R, erm(C), aacA-aphD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 823 | EP | blaZ-I-R, erm(C), aacA-aphD, aadD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 58 | EP | blaZ-I-R, aacA-aphD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 55 | IND | blaZ-I-R, erm(C), aacA-aphD, aadD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 389 | MP | blaZ-I-R, erm(C), aacA-aphD, dfrA, tet(M), sdrM, fosB | seb, sek, seq |
| 747 | MPE | blaZ-I-R, erm(C), aacA-aphD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 612 | CAP | blaZ-I-R, aacA-aphD, tet(K), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 734 | EP | blaZ-I-R, erm(C), aacA-aphD, dfrA, tet(M), sdrM, fosB | seb, sek, seq, sak, scn |
| 742 | EP | blaZ-I-R, erm(C), aacA-aphD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 822 | EP | blaZ-I-R, aacA-aphD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 723 | EP | blaZ-I-R, erm(C), aacA-aphD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 778 | EP | blaZ-I-R, erm(C), aacA-aphD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 570 | MP | blaZ-I-R, aacA-aphD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 413 | MPE | blaZ-I-R, erm(C), aacA-aphD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| 716 | MPE | blaZ-I-R, aacA-aphD, dfrA, tet(M), sdrM, fosB | sea, seb, sek, seq, sak, scn |
| Clonal Complex 22 | |||
| 34 | CAP | blaZ-I-R, vat(B), fosB | seg, sei, sem, sen, seo, seq, seu, sak, chp, scn |
| 38 | CAP | blaZ-I-R, vat(B), fosB | sec, seg, sei, sel, sem, sen, seo, seq, seu, sak, chp, scn |
| 253 | CAP | blaZ-I-R, fosB | seg, sei, sem, sen, seo, seq, seu, sak, chp, scn |
| 257 | CAP | blaZ-I-R, erm(C) | sec, seg, sei, sel, sem, sen, seo, seq, seu |
| 330 | CAP | blaZ-I-R | seg, sei, sem, sen, seo, seq, seu |
| 428 | CAP | blaZ-I-R | seg, sei, sem, sen, seo, seq, seu, chp |
| 606 | CAP | blaZ-I-R | sec, seg, sei, sel, sem, sen, seo, seq, seu, sak, chp, scn |
| 610 | CAP | blaZ-I-R | sec, seg, sei, sel, sem, seln, seo, seq, seu |
| 622 | CAP | blaZ-I-R | seg, sei, sem, sen, seo, seq, seu, sak, chp, scn |
| 844 | CAP | blaZ-I-R | seg, sei, sem, sen, seo, seq, seu, sak, chp, scn |
| 809 | EP | blaZ-I-R | sec, seg, sei, sel, sem, sen, seo, seq, seu, sak, chp, scn |
| 100 | MPE | blaZ-I-R, fosB | seg, sei, sem, sen, seo, seq, seu, sak, chp, scn |
| Clonal Complex 59 | |||
| 773 | MPE | blaZ-I-R, msr(A), mph(C), sdrM | sea, seb, sek, seq, sak, chp, scn |
| Clonal Complex 88 | |||
| 728 | EP | blaZ-I-R, erm(A), sdrM | sec, sel, sak, scn |
| 815 | EP | blaZ-I-R, erm(A), sdrM | sak, scn |
| 786 | HC | blaZ-I-R, erm(A), sdrM | sec, sel, sak, scn |
| 103 | MPE | blaZ-I-R, sdrM | sec, sel, sak, scn |
| Clonal Complex 398 | |||
| 516 | PP | blaZ-I-R, erm(C), tet(K), tet(M), sdrM, fosB | seg |
EP, equine practice; CAP, companion animal practice; MPE, mixed animal practice with both companion animals and equines; MP, mixed animal practice with companion animals and ruminants but no equines; PP, pig practice; HC, herd consulting practice; IND, industry veterinarian (pharmaceutical representative) with no clinical practice; STU, veterinary science student with undefined exposure.