Table 2 Virulence genes and biofilm production in 50 Staphylococcus epidermidis isolates from bloodstream infection and nasal colonization
Biofilm-associated virulence genes | Number (%) of isolates | Number (%) of biofilm producer isolates | ||||
|---|---|---|---|---|---|---|
BSIa (n = 31) | Nasalb (n = 19) | p value | BSIa (n = 8) | Nasalb (n = 8) | p value | |
aae | 31 (100) | 19 (100) | 1 | 8 (100) | 8 (100) | 1 |
aap | 18 (58) | 16 (84) | 0.068 | 7 (88) | 8 (100) | 1 |
atlE | 30 (97) | 19 (100) | 1 | 8 (100) | 8 (100) | 1 |
bhp | 1 (3) | 1 (5) | 1 | 0 (0) | 0 (0) | 1 |
embp | 28 (90) | 19 (100) | 0.279 | 8 (100) | 8 (100) | 1 |
fbe | 23 (74) | 16 (84) | 0.498 | 7 (88) | 6 (75) | 1 |
gehD | 23 (74) | 11 (58) | 0.349 | 6 (75) | 6 (75) | 1 |
sdrF | 20 (65) | 2 (11) | 0.001c | 6 (75) | 0 (0) | 0.007c |
sesI | 12 (39) | 0 (0) | 0.02c | 3 (38) | 0 (0) | 0.2 |
icaADB | 14 (45) | 10 (53) | 0.772 | 6 (75) | 7 (88) | 0.6 |
arcA | 6 (19) | 1 (5) | 0.229 | 4 (50) | 1(13) | 0.282 |
opp3AB | 3 (10) | 1 (5) | 1 | 1 (13) | 1 (13) | 1 |