Table 1.
The prevalence of sey, selw, selx and selz among 624 CA-MRSA isolates with different genotypes, SCCmec types and origins.
| Genotype | Total No. of Isolates | No. of Isolates With SE(-Like) Gene *1 (%) | ||||
|---|---|---|---|---|---|---|
| coa Genotype | spa Type (n = 149) *2 | sey | selw | selx | selz | |
| Ia | t375 (3) | 17 | 8 (47.1) | 8 (47.1) | 13 (76.5) | 12 (70.6) |
| IIa | t002 (56), t548 (2), t2487 (2), t001 (1), t045 (2) | 455 | 157 (34.5) | 450 (98.9) | 397 (87.3) | 5 (1.1) |
| IIIa | t008 (9), t4133 (2), t1767 (24), t5071 (1), t1627 (2), t1581(2) | 74 | 22 (29.7) | 64 (86.5) | 60 (81.1) | 0 |
| IVa | t019 (1) | 3 | 0 | 1 (33.3) | 0 | 0 |
| Va | t5110 (6), t10641 (10) | 16 | 13 (81.3) | 8 (50) | 16 (100) | 14 (87.5) |
| Vb | NT (1) | 1 | 0 | 1 (100) | 1 (100) | 0 |
| VIa | ND | 4 | 0 | 0 | 0 | 0 |
| VIIa | t1784 (23) | 51 | 20 (39.2) | 46 (90.2) | 46 (90.2) | 4 (7.8) |
| VIIb | t370 (2) | 3 | 1 (33.3) | 2 (66.7) | 1 (33.3) | 0 |
| Total | 624 | 221 (35.4) | 580 (92.9) | 534 (85.6) | 35 (5.6) | |
| SCCmec type | ||||||
| SCCmec I | 2 | 0 | 1 (50) | 2 (100) | 0 | |
| SCCmec II | 452 | 154 (34.1) | 431 (95.4) | 393 (86.9) | 5 (1.1) | |
| SCCmec IV | 125 | 41 (32.8) | 115 (92) | 106 (84.8) | 4 (3.2) | |
| SCCmec V | 34 | 26 (76.5) | 30 (88.2) | 30 (88.2) | 26 (76.5) | |
| SCCmec NT | 11 | 0 | 3 (27.3) | 3 (27.3) | 0 | |
| Specimen | ||||||
| sputum | 136 | 45 (33.1) | 130 (95.6) | 121 (89) | 9 (6.6) | |
| urine | 129 | 40 (31) | 118 (91.5) | 102 (79.1) | 3 (2.3) | |
| ear discharge | 76 | 35 (46.1) | 72 (94.7) | 70 (92.1) | 6 (7.9) | |
| nasal discharge | 75 | 28 (37.3) | 73 (97.3) | 67 (89.3) | 7 (9.3) | |
| pus | 57 | 24 (42.1) | 54 (94.7) | 52 (91.2) | 3 (5.3) | |
| wound swab | 29 | 13 (44.8) | 27 (93.1) | 27 (93.1) | 3 (10.3) | |
| eye swab | 29 | 12 (41.4) | 28 (96.6) | 26 (89.7) | 2 (6.9) | |
| stool | 33 | 9 (27.3) | 26 (78.8) | 24 (72.7) | 0 | |
| skin | 26 | 10 (38.5) | 24 (92.3) | 23 (88.5) | 2 (7.7) | |
| Others *3 | 34 | 5 (14.7) | 28 (82.4) | 22 (64.7) | 0 | |
NT, non-typable. *1 sel26 and sel27 were negative for all the isolates. *2 spa type and ST were determined for a total of 149 isolates comprising coa-Ia (3), coa-IIa (63), coa-IIIa (40), coa-IVa (1), coa-Va (16), coa-Vb (1) coa-VIIa (23), and coa-VIIb (2). ND, spa-typing not done. *3 Others included specimens of blood, bronchial lavage fluid, pharynx, aspirate, pleural fluid, joint fluid, HVS, catheter tip, drainage fluid, suction tube.