Table 1.
Distribution of genes for virulence factors in 200 S. aureus isolated from food handlers.
| Number (%) of isolates positive for virulence genes | ||||||||
| Sources of S. aureus (#) | SE | cap5 | cap8 | agr I | agr II | agrIII | lukS-lukF | tst |
| Nose (129) | 93 (72.1) | 49 (38.0) | 72 (55.8) | 67 (51.9) | 24 (18.6) | 28 (21.7) | 11 (8.5) | 7 (5.4) |
| Stool (31) | 21 (67.7) | 15 (48.4) | 15 (48.4) | 17 (54.8) | 6 (19.3) | 7 (22.5) | 4 (12.9) | 1 (3.2) |
| Hands (31) | 22 (70.9) | 9 (29.0) | 21 (67.7) | 13 (41.9) | 6 (19.3) | 11 (34.0) | 3 (9.7) | ND |
| Throats (9) | 6 (66.6) | 3 (33.3) | 6 (66.6) | 4 (44.4) | 4 (44.4) | 1 (11.1) | ND | ND |
| Total (200) | 142 (71.0) | 76 (38.0) | 114 (57.0) | 101 (50.5) | 40 (20.0) | 47 (23.5) | 18 (9.0) | 8 (4.0) |
Abbreviations: cap, genes for capsular polysaccharide, agr, genes for accessory gene regulator, luKS-lukF genes for PVL, tst, genes for TSST-1. ND, Not detected