Table 3 Prevalence of virulence factors in MRSA and MSSA isolates
Virulence genes | MRSA | MSSA | All | p values | |||
|---|---|---|---|---|---|---|---|
n | % | n | % | n | % | ||
Superantigens | |||||||
tst | 0 | 0.0 | 4 | 2.6 | 4 | 1.3 | 0.044 |
eta | 0 | 0.0 | 4 | 2.6 | 4 | 1.3 | 0.044 |
etb | 1 | 0.7 | 3 | 2.0 | 4 | 1.3 | 0.3141 |
sea | 30 | 19.6 | 17 | 11.1 | 47 | 15.4 | 0.0390 |
seb | 58 | 37.9 | 49 | 32.0 | 107 | 35.0 | 0.2806 |
sec | 12 | 7.8 | 25 | 16.3 | 37 | 12.1 | 0.0223 |
Cytotoxins | |||||||
lukS-PV/lukF-PV | 5 | 3.3 | 2 | 1.3 | 7 | 2.3 | 0.2513 |
hla | 111 | 72.5 | 118 | 77.1 | 229 | 74.8 | 0.3564 |
hlb | 106 | 69.3 | 75 | 49.0 | 181 | 59.2 | 0.0003 |
hlg | 89 | 58.2 | 84 | 54.9 | 173 | 56.5 | 0.5642 |
hlg-v | 31 | 20.3 | 93 | 60.8 | 124 | 40.5 | < 0.0001 |
Adhesins | |||||||
icaA | 122 | 79.7 | 85 | 55.6 | 207 | 67.6 | < 0.0001 |
spa | 150 | 98.0 | 152 | 99.3 | 302 | 98.7 | 0.3141 |
cna | 110 | 71.9 | 45 | 29.4 | 155 | 50.7 | < 0.0001 |