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Table 2 The presence of biofilm-related genes for each agr group

From: Screening of genes encoding adhesion factors and biofilm production in methicillin resistant strains of Staphylococcus aureus isolated from Palestinian patients

 

Agr group (%)

Biofilm Plate Titer (N = 248)

AgrI

AgrII

AgrIII

AgrIV

NT

SarA gene

 Weak biofilm producer (n = 81, 32.7%)

30.6

17.4

43.9

66.7

13.9

77.7

 Modertae biofilm producer (n = 115, 46.3%)

42.9

56.5

50.0

22.2

47.2

73.9

 Strong biofilm producer (n = 52, 20.9%)

26.5

26.1

6.1

11.1

38.9

48.1

 Total (n, %)

(98, 39.5%)

(23, 9.3%)

(82, 33.1%)

(9, 3.6%)

(36, 14.5%)

173

 SarA gene (173, 69.7%)

80.6

65.2

80.5

77.7

16.6

 

Adhesion Genes

 icaD/ icaA(n = 248)

87.7

87.0

78.0

88.9

80.6

58.5

 Eno (n = 235, 94.8%)

92.9

91.3

97.6

100.0

94.4

71.5

 ClfA (n = 199, 80.2%)

92.9

87.0

89.0

55.6

27.8

80.4

 ClfB (n = 199, 80.2%)

92.9

87.0

89.0

55.6

27.8

80.4

 FnbA (n = 194, 78.2%)

87.8

78.3

91.5

66.7

25.0

81.4

 EbpS (n = 191, 76.2%)

82.7

60.9

84.1

55.6

55.6

76.4

 Fib (n = 154, 62.2%)

60.2

73.9

80.5

66.7

16.7

83.1

 Cna (n = 99, 39.9%)

46.9

21.7

53.7

0.0

11.1

78.8

 FnbB (n = 72, 29.0%)

52.0

21.7

13.4

11.1

11.1

81.9

Antibiotic Resistance

 Cefoxitin/Penicillin (n = 248)

100.0

100.0

100.0

100.0

100.0

100

 Erythromycin (n = 163)

59.2

60.9

69.5

33.3

86.1

63.2

 Ciprofloxacin (n = 109)

58.2

56.5

20.7

33.3

52.8

63.3

 Clindamycin (n = 95)

28.6

43.5

48.8

11.1

44.4

65.3

 Gentamycin (n = 58)

27.6

21.7

11.0

22.2

41.7

55.2

 SXT (n = 55)

19.4

21.7

11.0

11.1

58.3

41.8

 MDR (n = 66)

22.4

43.5

13.4

11.1

61.1

46.9

Source of isolate

 Wound (n = 78)

36.7

34.8

35.4

22.2

8.3

80.7

 Blood (n = 34)

11.2

17.4

11.0

11.1

25.0

52.9

 Nasal (n = 25)

11.2

13.0

8.5

0.0

11.1

64

 Pus (n = 23)

8.2

8.7

13.4

22.2

0.0

95.6

 Urine (n = 23)

1.0

0.0

11.0

22.2

30.6

43.5

 Tissue (n = 13)

9.2

8.7

2.4

0.0

0.0

61.5

 Sputum (n = 12)

3.1

8.7

6.1

0.0

5.6

58.3

 Other sites (n = 40)

19.4

8.7

12.2

22.2

19.4

72.5