agr group (n,%)                        No of S.aureus isolates with virulence SAg gene:                                         (genotype, n) Total SAg genes, n (%)
  None One Two Three Four Five  
I (66, 47.2) 23 seb,1 seb sep, 1 seb sem seo, 2 sec sel sem seo, 9 seb sec sel sem seo, 1  
    sec, 1 sec sep, 1 sec sel seo, 3   sec sel sem seo tst, 1  
    sel, 1 sec sem, 1 sek sep seq, 1      
    sem, 1 sem seo, 12 sem seo sep, 1      
    seo, 3   sem seo tst, 1      
    sep, 2          
Sous total of SAg genes/ agrI (%) 23 (34.9) 9  (13.7) 15 (22.7) 8 (12.1) 9 (13.6) 2 (3.0) 43 (65.15)
II (29,20.7) 10 seo, 1 seb sep, 1 sec sem seo, 1 sec sel sem seo, 1 sed sem seo sep ser, 1  
    tst, 1 sem seo, 7 sem seo sep, 4 sed sem seo ser, 1    
      sem tst, 1        
Sous total of SAg genes/ agrII (%) 10 (34.5) 2 (6.9) 9 (31.0) 5 (17.3) 2 (6.9) 1 (3.4) 19 (65.51)
III (42,30.0) 0 seh, 4 sea seh, 1 sec seo tst, 1 sea sec seh sel, 1 sec seh sek sel seq, 1  
    seo, 3 seh seo, 1 sec seh sek, 1 sea seh sek seq, 1    
      sek seq, 2 seh sek seq, 3 seb seh sek seq, 1    
      sem seo, 7 seh seo tst, 1 sec seh sek seq, 1    
      seo tst, 2 sek sem seo, 1 seh sek seo seq, 1    
      ser tst, 1 sem seo tst, 5 seh sek seq tst, 2    
          seh seo ser tst, 1    
Sous total of SAg genes/ agrIII (%) 0 7  (16.7) 14 (33.3) 12 (28.6) 8 (19.0) 1 (2.4) 42 (100.00)
IV (3, 2.1) 0   sem seo, 2 seb sel seo, 1 0 0  
Sous total of SAg genes/ agrIV (%) 0 0 (0.0) 2 (66.7) 1 (33.3) 0 0 3 (100.00)
Sous total   of SAg genes/ agr I, II, III,IV 33 18 40 26 19 4 107 (76.4)
N.B: sek, sel, sem, seo, sep and seq genes = staphylococcal enterotoxin-like
Table 1: Combination of SAg genes in clinical isolates of S. aureus according to their agr group (n=140).