Table 4.
Distribution of virulence genes in Staphylococcus aureus, MRSA and MSSA isolates of patients, surfaces and personnel in burn Shahid Motahari Hospital, Tehran, Iran
| Virulence genes | Patients (123) |
Surfaces (30) |
Personnel(14) |
|||
|---|---|---|---|---|---|---|
| MRSA (79) N (%) | MSSA (7) (79) N (%) |
MSSA (44) (79) N (%) |
MRSA (22) (79) N (%) |
MSSA (8) (79) N (%) |
MRSA (7) (79) N (%) |
|
| Adhesion | ||||||
| eno | 65 (82.2) | 35 (79.5) | 22 (100) | 7 (87.5) | 7 (100) | 7 (100) |
| cna | 45 (56.9) | 26 (59) | 18 (81.8) | 4 (50) | 3 (42.8) | 3 (42.8) |
| clfB | 49 (62) | 34 (77.2) | 19 (86.3) | 7 (87.5) | 5 (71.4) | 3 (42.8) |
| fib | 59 (74.6) | 25 (56.8) | 20 (90.9) | 5 (62.5) | 7 (100) | 4 (57.1) |
| Toxin | ||||||
| hla | 17 (21.5) | 7 (15.9) | 2 (9) | 3 (37.5) | 1 (14.2) | 0 |
| hlb | 74 (93.6) | 40 (90.9) | 21 (95.4) | 7 (87.5) | 7 (100) | 6 (85.7) |
| hld | 34 (43) | 5 (11.3) | 14 (63.6) | 1 (12.5) | 4 (57.1) | 0 |
| hlg | 70 (88.6) | 38 (86.3) | 22 (100) | 6 (75) | 7 (100) | 7 (100) |
| 5 (6.3) | 13 (29.5) | 0 | 1 (12.5) | 0 | 1 (14.2) | |
| pvl | 5 (6.3) | 11 (25) | 2 (9) | 0 | 0 | 0 |
| Biofilm | ||||||
| tst | 0 | 1 (2.2) | 0 | 0 | 0 | 0 |
| icaA | 56 (70.8) | 28 (63.6) | 21 (95.4) | 6 (75) | 6(85.7) | 4 (57.1) |
| icaD | 64 (81) | 37 (84) | 21 (95.4) | 8 (100) | 7(100) | 6 (85.7) |
MRSA: methicillin resistant Staphylococcus aureus; MSSA: methicillin-susceptible Staphylococcus aureus