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Table 3 Virulence factors among isolates and resistance to antimicrobials

From: Epidemiology, antibiotic consumption and molecular characterisation of Staphylococcus aureus infections – data from the Polish Neonatology Surveillance Network, 2009–2012

Virulence factor All [N = 49]; (n, %) MRSA [N = 16]; (n, %) MSSA [N = 33]; (n, %)
hla 46 (93.9) 16 (100) 30 (90.9)
sea 8 (16.3) 1(6.3) 7 (21.2)
seb 0 0 0
sec 7 (14.3) 4 (25) 3 (9.1)
seg 32 (65.3) 15 (93.8) 17 (51.5)
seh 1 (2.0) 1 (6.3) 0
sei 32 (65.3) 15 (93.8) 17 (51.5)
sej 4 (8.2) 0 4 (12.1)
eta 7 (14.3) 4 (25) 3 (9.1)
etb 0 0 0
tsst 9 (18.4) 0 9 (27.3)
lukE 19 (38.8) 0 19 (57.6)
pvl 0 0 0
Resistance All [N = 49]; (%) MRSA [N = 16]; (%) MSSA [N = 33]; (%)
E 16 (32.6) 10 (62.5) 6 (18.2)
DA 12 (24.5) 7 (43.7) 5 (15.1)
OFX 0 0 0
GN 3 (6.1) 2 (12.5) 1 (3.0)
TOB 6 (12.2) 2 (12.5) 4 (12.1)
AK 6 (12.2) 3 (18.7) 3 (9.1)
VA 0 0 0
TEC 0 0 0
  1. Legend: E-erythromycin, DA-clindamycin, OFX – ofloxacin, GN – gentamycin, TOB – tobramycin, AK – amikacin, VA – vancomycin, TEC – teicoplanin.
  2. hla (staphylococcal alpha haemolysin), sea, seb, sec, seg, seh, sei, sej (staphylococcal enterotoxins A, B, C, G, H, I, J), eta, etb (exfoliative toxins A and B), tsst (toxic shock syndrome toxin), lukE (LukDE leucocidin), pvl (Panton-Valentine leucocidin).