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Table 2 Phenotypic and molecular characteristics of S. aureus isolates among drug users in Guangzhou, China, 2017

From: Prevalence, risk factors, phenotypic and molecular characteristics for Staphylococcus aureus carriage in community-based drug users in Guangzhou, China

CharacteristicsS. aureus (N = 53)
TotalMRSA(N = 24)MSSA (N = 29)
Resistant phenotype (resistant)
 Clindamycin24 (45.28)15 (62.50)9 (31.03)
 Erythromycin26 (49.06)15 (62.50)11 (37.93)
 Penicillin49 (92.45)23 (95.83)26 (89.66)
 Linezolid1 (1.89)1 (4.17)0 (0.00)
 Gentamicin4 (7.55)3 (12.50)1 (3.45)
 Teicoplanin10 (18.87)8 (33.33)2 (6.90)
 Trimethoprim-sulfamethoxazole7 (13.21)4 (16.67)3 (10.34)
 Moxifloxacin5 (9.43)4 (16.67)1 (3.45)
 Rifampin2 (3.77)2 (8.33)0 (0.00)
 Chloramphenicol11 (20.75)7 (29.17)4 (13.79)
 Tetracycline17 (32.08)9 (37.50)8 (27.59)
Resistant genotype (positive)
erm(A)1 (1.89)1 (4.17)0 (0.00)
erm(C)5 (9.43)5 (20.83)0 (0.00)
tet(K)4 (7.55)4 (16.67)0 (0.00)
tet(M)0 (0.00)0 (0.00)0 (0.00)
Virulence genes (positive)
lukF-PV and lukS-PV3 (5.66)3 (12.50)0 (0.00)
tst2 (3.77)2 (8.33)0 (0.00)
eta1 (1.89)1 (4.17)0 (0.00)
etb1 (1.89)1 (4.17)0 (0.00)
sea0 (0.00)0 (0.00)0 (0.00)
seb1 (1.89)0 (0.00)1 (3.45)
sec3 (5.66)1 (4.17)2 (6.90)
sed17 (32.08)11 (45.83)6 (20.69)
see0 (0.00)0 (0.00)0 (0.00)
seg26 (49.06)13 (54.17)13 (44.83)
seh3 (3.45)3 (12.50)0 (0.00)
sei18 (33.96)9 (37.50)9 (31.03)
sej6 (11.32)3 (12.50)3 (10.34)
sek11 (20.75)8 (33.33)3 (10.34)
sel4 (7.55)2 (8.33)2 (6.90)
sem16 (30.19)6 (25.00)10 (34.48)
sen12 (22.64)4 (16.67)8 (27.59)
seo13 (24.53)4 (16.67)9 (31.03)
sep4 (7.55)1 (4.17)3 (10.34)
seq5 (9.43)2 (8.33)3 (10.34)
ser5 (9.43)2 (8.33)3 (10.34)
seu12 (22.64)7 (29.17)5 (17.24)
  1. S. aureus Staphylococcus aureus; MRSA Methicillin-resistant S. aureus; MSSA Methicillin- sensitive S. aureus