Table 2.
Characteristics of the 92 S. aureus Thailand isolates.
| Isolate no. | Methicillin susceptibility | Drug group | Enterotoxin gene(s) | ExT gene | RPLA toxin | PFGE type | Agr group | Biofilm (OD) |
|---|---|---|---|---|---|---|---|---|
| S1 | R | 1 | sek, seq | — | ND | 1 | 1 | + (0.831) |
| S2 | R | 1 | sea, sek, seo, seq | — | ND | 1 | 1 | + (0.828) |
| S3 | R | 1 | sek, seq | — | ND | 1 | 1 | + (0.039) |
| S4 | R | 1 | sek, seq | — | ND | 1 | 1 | + (0.181) |
| S5 | R | 1 | sea, sek, seq | — | — | 1 | 1 | + (0.701) |
| S6 | R | 1 | sek, seq | — | ND | 2 | 1 | + (1.566) |
| S7 | R | 1 | sea, sed, sek, seq | — | — | 1 | 2 | + (1.841) |
| S8 | R | 1 | sea, sek, seq | — | SEA | 6 | 1 | + (1.701) |
| S9 | R | 1 | sea, sek, seq | — | SEA | 21 | 1 | + (0.996) |
| S10 | R | 1 | sea, sek, seq | — | SEA | 21 | 1 | + (1.219) |
| S11 | R | 1 | sea, sek, seo, seq | — | SEA | 21 | 1 | + (1.749) |
| S12 | R | 1 | sea, sek, seq | — | SEA | 21 | 1 | + (1.377) |
| S13 | R | 1 | sea, sek, seq | — | SEA | 21 | 1 | + (1.687) |
| S14 | R | 1 | sea, sek, seq | — | SEA | 21 | 1 | + (0.796) |
| S15 | R | 2 | sea, sek, seq | — | — | 1 | 1 | + (0.097) |
| S16 | R | 2 | seq | — | ND | 3 | 1 | + (0.132) |
| S17 | R | 3 | sea, sek, seq | — | — | 1 | 1 | + (0.085) |
| S18 | R | 3 | sea, sek, seq | — | — | 4 | 1 | + (0.230) |
| S19 | R | 3 | sea, sek, seq | — | — | 4 | 1 | + (0.080) |
| S20 | R | 3 | sek, seq | — | ND | 6 | 1 | + (0.417) |
| S21 | R | 3 | sek, seq | — | ND | 6 | 1 | + (1.103) |
| S22 | R | 3 | sek, seq | — | ND | 6 | 1 | + (1.835) |
| S23 | R | 3 | sek, seq | — | ND | 21 | 1 | + (0.097) |
| S24 | R | 4 | sea, sek, seq | — | — | 2 | 1 | + (0.552) |
| S25 | R | 7 | sea, sek, seq | — | — | 1 | 1 | + (0.569) |
| S26 | R | 7 | sek, seq | — | ND | 1 | 1 | + (1.000) |
| S27 | R | 7 | sek, seq | — | ND | 1 | 1 | + (1.155) |
| S28 | R | 7 | sea, sek, seq | — | — | 1 | 1 | + (0.715) |
| S29 | R | 7 | sek, seq | — | ND | 2 | 1 | + (1.061) |
| S30 | R | 7 | sek, seq | — | ND | 2 | 1 | + (1.131) |
| S31 | R | 7 | sek, seq | — | ND | 2 | 1 | + (0.774) |
| S32 | R | 7 | sea, sec, sek, sel, seq | — | — | 9 | 1 | + (1.796) |
| S33 | R | 7 | seq | — | ND | 21 | 1 | + (2.481) |
| S34 | R | 7 | sea, sec, sel, seq | — | — | 21 | 1 | + (1.000) |
| S35 | R | 7 | sea, sek, seq | — | — | 21 | 1 | + (1.792) |
| S36 | R | 7 | sek, seq | — | ND | 21 | 1 | + (1.184) |
| S37 | R | 7 | sek, seq | — | ND | 21 | 1 | + (2.332) |
| S38 | S | 8 | — | ND | 4 | 1 | − (−0.052) | |
| S39 | S | 8 | sej, sek, seq | — | ND | 4 | 2 | + (0.367) |
| S40 | S | 8 | seq | — | ND | 21 | 1 | + (0.508) |
| S41 | S | 9 | seb, sed, sej, sek, seq, ser, etd | — | SEB, SED | 21 | 3 | + (0.074) |
| S42 | S | 9 | seg, sei, sem, sen, seo, seq, seu | — | — | 19 | 3 | − (−0.007) |
| S43 | S | 9 | seg, sei, sek, sem, sen, seo, seq | — | — | 7 | 2 | − (−0.008) |
|
| ||||||||
| P1 | R | 1 | sea, seq | — | SEA | 21 | 1 | + (0.317) |
| P2 | R | 1 | sea, seg, sei, sek, sen, seo, seq | — | SEA | 9 | 2 | + (0.700) |
| P3 | R | 5 | sea, seg, sei, sem, sen, seo, seq | — | SEA | 9 | 2 | + (0.098) |
| P4 | R | 5 | sea, seg, sei, sem, sen, seo, seq | — | SEA | 9 | 2 | − (−0.194) |
| P5 | R | 5 | sea, sei, sek, sen, seo, seq | — | SEA | 9 | 2 | + (0.543) |
| P6 | R | 5 | sea, seg, sei, sem, sen, seo, seq | — | SEA | 9 | 2 | − (−0.144) |
| P7 | R | 5 | sea, seg, sei, sek, sem, sen, seo, seq | — | SEA | 9 | 2 | − (−0.095) |
| P8 | R | 5 | sea, seg, sei, sem, sen, seo, seq | — | SEA | 13 | 2 | + (0.451) |
| P9 | R | 5 | sea, sed, seg, sei, sej, sem, sen, seo, sep, seq, ser | — | SED | 16 | 2 | − (−0.05) |
| P10 | R | 6 | sea, sek, seq | — | SEA | 21 | 1 | + (0.817) |
| P11 | R | 6 | sea, seb, seg, sei, sem, sen, seo, seq | — | SEB | 22 | 2 | + (0.141) |
| P12 | R | 6 | seb, seg, sei, sem, sen, seo, seq | — | SEB | 22 | 2 | + (0.179) |
| P13 | R | 6 | seb, seg, sei, sem, sen, seq | — | SEB | 22 | 2 | − (−0.176) |
| P14 | R | 6 | sea, seb, seg, sei, sem, sen, seo, seq | — | — | 22 | 2 | + (0.182) |
| P15 | R | 6 | sea, seb, seg, sei, sem, sen, seo, seq | — | SEB | 22 | 2 | − (−0.084) |
| P16 | R | 6 | sea, seb, seg, sei, sem, sen, seo, seq | — | SEB | 22 | 2 | − (−0.249) |
| P17 | R | 6 | seb, seg, sei, sem, sen, seo, seq | — | SEB | 22 | 2 | − (−0.051) |
| P18 | R | 6 | seb, seg, sei, sem, sen, seo, seq | — | SEB | 22 | 2 | − (−0.137) |
| P19 | R | 6 | sea, seb, seg, sei, sem, sen, seo, seq | — | — | 22 | 2 | − (−0.117) |
| P20 | S | 9 | sea, sek, sel, seq | — | — | 1 | 1 | + (1.311) |
| P21 | S | 9 | sea, sec, sel, seq | — | — | 2 | 1 | − (−0.173) |
| P22 | S | 9 | sea, seo, seq | — | — | 8 | 1 | + (0.300) |
| P23 | S | 9 | sea, sec, sel, seq | — | SEA, SEC | 9 | 1 | − (−0.204) |
| P24 | S | 9 | sea, seq | — | — | 9 | 1 | + (2.210) |
| P25 | S | 9 | sea, sek, seq | — | — | 10 | 4 | + (0.484) |
| P26 | S | 9 | sea, sek, seo, seq | — | — | 17 | 1 | + (1.156) |
| P27 | S | 9 | sea, seh, sek, seq | — | SEA | 17 | 3 | − (−0.058) |
| P28 | S | 9 | sea, sed, sei, seq | etd | SED | 18 | 1 | − (−0.225) |
| P29 | S | 9 | sea, seq | — | — | 18 | 2 | + (0.098) |
| P30 | S | 9 | sea, sec, seg, sei, sel, sem, sen, seo, seq | — | SEC | 18 | 2 | − (−0.390) |
| P31 | S | 9 | sea, seb, seg, sei, sem, sen, seo, seq, seu | eta | — | 18 | 2 | − (−0.147) |
| P32 | S | 9 | sea, sec, seg, sei, sel, sen, seo, seq | — | SEC | 20 | 3 | + (0.128) |
| P33 | S | 9 | seq | — | ND | 20 | 3 | − (−0.245) |
| P34 | S | 9 | seo, seq | — | ND | 22 | 1 | − (−0.326) |
| P35 | S | 9 | sea, seo, seq | — | — | 23 | 1 | + (0.054) |
| P36 | S | 9 | sed, sek, seq | — | ND | 23 | 1 | + (1.107) |
|
| ||||||||
| T1 | S | 9 | sea, sen, seq | — | — | 5 | 2 | − (−0.073) |
| T2 | S | 9 | sea, seg, sem, sen, seo, seq | — | SEA | 5 | 2 | + (0.046) |
| T3 | S | 9 | seb, seg, sei, sem, sen, seo, seq, seu | eta | SEB, ETA | 8 | 4 | + (3.872) |
| T4 | S | 9 | sea, seg, sen, seq | — | — | 9 | 2 | + (0.319) |
| T5 | S | 9 | sea, seg, sei, sek, sem, sen, seo, seq, seu | — | — | 9 | 4 | − (−0.081) |
| T6 | S | 9 | seg, sen, seq | — | ND | 11 | 1 | + (0.736) |
| T7 | S | 9 | sea, seg, sei, sek, sen, seo | — | — | 15 | 2 | + (2.818) |
| T8 | S | 9 | sea, seg, sei, sem, sen, seo, seq | eta | — | 18 | 1 | + (0.156) |
| T9 | S | 10 | seq | etd | ND | 12 | 1 | − (−0.114) |
| T10 | S | 10 | sea, seg, sei, sem, sen, seo, seq | — | SEA | 14 | 2 | + (0.086) |
| T11 | S | 10 | sea, seg, sei, sem, sen, seo, seq | — | — | 15 | 2 | + (0.808) |
| T12 | S | 10 | sec, seh, sel, seq | — | SEC | 15 | 3 | − (−0.198) |
| T13 | S | 10 | sea, sek, seq | etd | SEA | 18 | 1 | + (0.235) |
−: not detectable, +: produced biofilm.
ND: not done.