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Table 2 Distributions of resistance and virulence-related genes in GBS recovered from neonates and pregnant women, respectively

From: Phenotypic and genetic differences among group B Streptococcus recovered from neonates and pregnant women in Shenzhen, China: 8-year study

Resistance/virulence-related genes

No. of isolates

EOGBS

LOGBS

NCGBS

MCGBS

ERY and CLI resistance genesa

 ermB

4

8

8

11

 mefA/E

  

1

10

 lnuB

   

1

 ermB, mefA/E

1

2

 

6d

 ermB, lnuB

3

6

2

5

 mefA/E, lnuB

 

1

 

2

 mefA/E, lnuD

   

6

 ermB, mefA/E, lnuB

   

2

 ermTR, mefA/E

   

1d

TET resistance genesb

 TetO

1

4

5

9

 TetM

1

  

37

 TetS

  

1

1

 TetO, TetM

8

11

4

2

 TetM, TetS

   

1

 TetO, TetM, TetL

1

2

 

1

 TetO, TetM, TetK

  

1

 

Virulence-related genesc

 hylB

   

4

 hylB, lmb

 

1

2

4

 hylB, scpB

  

1

 

 hylB, lmb, scpB

9

15

3

44

 hylB, lmb, bca

   

1

 hylB, lmb, scpB, bac

1

 

4

4

 hylB, lmb, scpB, bac, bca

2

1

2

 
  1. ERY erythromycin, CLI clindamycin, TET tetracycline EOGBS early-onset GBS, LOGBS late-onset GBS, NCGBS neonatal colonizing GBS, MCGBS maternal colonizing GBS
  2. a 36 and 44 isolates of erythromycin and/or clindamycin resistant/intermediate GBS were detected in neonates and pregnant women, respectively
  3. b 39 and 51 isolates of tetracycline resistant GBS were detected in neonates and pregnant women, respectively
  4. c 41 and 57 isolates of GBS were detected in neonates and pregnant women, respectively
  5. d Inducible clindamycin resistance was detected in GBS isolate for each one, respectively
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BMC Microbiology

ISSN: 1471-2180

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