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Table 2 Genotypic characteristics of MRSA isolates stratified by agr functionality

From: Accessory gene regulator (agr) dysfunction was unusual in Staphylococcus aureus isolated from Chinese children

Genotype

No. of solates (%)

agr

pvl (+), N (%)

Dysfunction

Function

Total

211

8 (3.79)

203 (96.21)

75 (35.55)

Origins

 Community-associated

104 (49.29)

0

104 (100.00)

44 (42.30)

 Hospital-associated

107 (50.71)

8 (7.47)

99 (92.52)

31 (28.97)

MLST

 1

8 (3.79)

0

8 (100.00)

2 (25.00)

 22

7 (3.32)

0

7 (100.00)

7 (100.00)

 59

128 (60.66)

2 (1.56)

126 (98.44)

49 (38.28)

 88

8 (3.79)

0

8 (100.00)

5 (62.50)

 239

27 (12.80)

4 (14.81)

23 (85.19)

2 (7.41)

 Othersa

33 (15.64)

2 (6.06)

31 (93.94)

10 (30.30)

SCCmec

 I

1 (0.47)

0

1 (100.00)

0

 III

26 (12.32)

4 (15.38)

22 (84.62)

2 (7.69)

 IV

145 (68.72)

3 (2.07)

142 (97.93)

51 (35.17)

 V

32 (15.17)

1 (3.13)

31 (96.87)

19 (59.38)

 NTb

7 (3.32)

0

7 (100.00)

3 (42.86)

spa type

 t030

16 (7.58)

0

16 (100.00)

0

 t037

7 (3.32)

3 (42.86)

4 (57.14)

1 (14.29)

 t309

7 (3.32)

0

7 (100.00)

7 (100.00)

 t437

107 (50.71)

2 (1.87)

105 (98.13)

47 (43.92)

 t441

14 (6.64)

0

14 (100.00)

7 (50.00)

 Othersc

60 (28.43)

3 (5.00)

57 ()95.00)

13 (21.67)

agr type

 I

185 (87.68)

7 (3.78)

178 (96.22)

67 (36.22)

 II

6 (2.84)

1 (16.67)

5 (83.33)

1 (16.67)

 III

17 (8.06)

0

17 (100.00)

7 (41.18)

 IV

3 (1.42)

0

3 (100.00)

0

MLST-SCCmec type

 ST1-SCCmec IV

6 (2.84)

0

6 (100.00)

0

 ST22-SCCmec V

7 (3.32)

0

7 (100.00)

7 (100.00)

 ST59-SCCmec IV

118 (55.92)

2 (1.69)

116 (98.31)

44 (37.29)

 ST239-SCCmec III

23 (10.90)

4 (17.39)

19 (82.61)

1 (4.35)

 Others

57 (27.01)

2 (3.51)

50 (96.49)

23 (40.35)

MLST-SCCmec-spa-agr type

 ST59-SCCmec IV-t437-agr I

92 (43.60)

1 (1.09)

91 (98.91)

36 (39.13)

 ST59-SCCmec IV-t441-agr I

12 (5.69)

0

12 (100.00)

6 (50.00)

 ST239-SCCmec III-t030-agr I

12 (5.69)

0

12 (100.00)

0

 ST239-SCCmec III-t037-agr I

7 (3.32)

3 (42.86)

4 (57.14)

0

 ST22-SCCmec V-t039-agr I

7 (3.32)

0

7 (100.00)

7 (100.00)

 Others

81 (38.39)

4 (4.94)

77 (95.06)

26 (32.10)

  1. aThe other MLSTs were ST5 (2 isolates), ST6 (1 isolate), ST9 (1 isolate), ST30 (1 isolate), ST72 (2 isolates), ST97 (1 isolate), ST120 (1 isolate), ST121 (1 isolate), ST375 (1 isolate), ST509 (1 isolate), ST585 (1 isolate), ST630 (1 isolate), ST896 (1 isolate), ST950 (1 isolate), ST965 (2 isolates), ST1224 (1 isolate), ST1295 (1 isolate), ST1296 (1 isolate), ST1777 (1 isolate), ST1821 (1 isolate)
  2. bNot determined
  3. cThe other spa types were t008 (1 isolate), t011 (1 isolate), t021 (1 isolate), t034 (2 isolates), t062 (2 isolates), t078 (2 isolates), t114 (6 isolates), t127 (3 isolates), t138 (1 isolate), t163 (1 isolate), t172 (4 isolate), t186 (1 isolate), t267 (1 isolate), t318 (1 isolate), t459 (2 isolate), t664 (1 isolate), t895 (2 isolates), t1894 (1 isolate), t1977 (1 isolate), t2270 (1 isolate), t2310 (1 isolate), t2755 (2 isolate), t3401 (1 isolate), t3515 (2 isolates), t3523 (1 isolate), t3590 (1 isolate), t4431 (1 isolate), t4549 (2 isolates), t7617 (1 isolate), t7637 (1 isolate), t8660 (2 isolates), t8723 (1 isolate), t10555 (1 isolate), t12946 (1 isolate), t16365 (1 isolate)
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BMC Microbiology

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