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Table 1 Detailed composition of the vaginal microflora of 515 vaginal swab samples, as determined by culture and tDNA-PCR based identification

From: Comparison between Gram stain and culture for the characterization of vaginal microflora: Definition of a distinct grade that resembles grade I microflora and revised categorization of grade I microflora

Species

Vaginal smears graded by Gram stain

Grade

Ia

Ib

Iab

I-like

II

III

IV

Total

Number of samples

162

181

60

36

46

22

8

515

Lactobacillus spp.

Lactobacillus crispatus

87.0a

13.3

76.7

2.8

10.9

 

37.5

42.7

Lactobacillus jensenii

22.2

24.3

43.3

13.9

47.8

18.2

12.5

26.8

Lactobacillus gasseri

6.8

32.0

25.0

52.8

54.3

9.1

25.0

25.6

Lactobacillus iners

3.7

39.8

8.3

19.4

26.1

31.8

 

21.2

Lactobacillus vaginalis

9.3

12.7

15.0

11.1

6.5

 

20.0

1.7

Lactobacillus casei

 

1.1

1.7

2.8

2.2

4.5

12.5

1.4

Lactobacillus coleohominis

1.2

5.5

5.0

 

2.2

  

3.1

Lactobacillus delbrueckii

 

0.6

 

5.6

2.2

  

0.8

Lactobacillus fermentum

0.6

1.1

3.3

  

4.5

 

1.2

Lactobacillus kalixensis

 

0.6

     

0.2

Lactobacillus mucosae

    

4.3

  

0.4

Lactobacillus nagelii

    

2.2

  

0.2

Lactobacillus oris

    

4.3

  

0.4

Lactobacillus pontis 94%

 

0.6

     

0.2

Lactobacillus reuteri

 

1.7

1.7

5.6

   

1.2

Lactobacillus rhamnosus

 

0.6

 

8.3

4.3

4.5

12.5

1.6

Lactobacillus salivarius

 

0.5

     

0.2

Bifidobacterium spp.

Bifidobacterium biavatii

 

0.6

 

5.6

  

12.5

0.8

Bifidobacterium bifidum

 

0.6

 

2.8

 

4.5

 

0.6

Bifidobacterium breve

 

0.6

 

25.0

10.9

9.1

 

3.3

Bifidobacterium dentium

0.6

  

8.3

 

4.5

 

1.0

Bifidobacterium longum

0.6

0.6

 

5.6

 

4.5

 

1.0

Bifidobacterium sp.

 

0.6

 

5.6

   

0.6

Bacterial vaginosis-related anaerobe organisms

Actinomyces neuii

    

6.5

9.1

 

1.0

Aerococcus christensenii

    

4.3

22.7

 

1.4

Anaerococcus tetradius b

    

2.2

  

0.2

Anaerococcus vaginalis b

   

2.8

   

0.2

Atopobium vaginae

 

0.6

  

4.3

13.6

 

1.2

Bacteroides ureolyticus

0.6

  

2.8

2.2

9.1

 

1.0

Dialister sp.

     

22.7

12.5

1.2

Finegoldia magna b

0.6

0.6

  

2.2

9.1

 

1.0

Gardnerella vaginalis

1.2

2.8

1.7

2.8

21.7

72.7

 

6.8

Gemella morbillorium b

    

2.2

  

0.2

Mobiluncus curtisii

     

4.5

 

0.2

Mycoplasma hominis

    

4.3

  

0.4

Peptoniphilus sp.b

3.1

1.7

 

2.8

6.5

9.1

 

2.7

Peptostreptococcus sp.

     

4.5

 

0.2

Prevotella bivia

 

0.6

 

2.8

 

13.6

 

1.0

Prevotella ruminicola

     

4.5

 

0.2

Prevotella sp.

     

4.5

 

0.2

Varibaculum cambriense

    

2.2

13.6

 

0.8

Other species

Actinomyces europaeus 96%

0.6

      

0.2

Actinomyces urogenitalis

     

4.5

 

0.2

Arcanobacterium bernardiae

0.6

      

0.2

Arthrobacter albus

    

4.3

  

0.4

Atopobium parvulum

     

4.5

 

0.2

Clostridium colicanis

  

3.3

    

0.4

Clostridium sp.

     

4.5

 

0.2

Corynebacterium amycolatum

   

2.8

   

0.2

Corynebacterium coyleae

 

0.6

     

0.2

Corynebacterium pseudogenitalium

0.6

      

0.2

Corynebacterium sp.

 

0.6

  

4.3

  

0.6

Enterococcus faecalis

2.5

4.4

3.3

 

2.2

4.5

 

3.1

Escherichia coli

 

0.6

3.3

2.8

 

9.1

 

1.2

Haemophilus influenzae

    

2.2

  

0.2

Helcococcus sp.

     

4.5

 

0.2

Pediococcus pentosaceus

   

2.8

 

4.5

 

0.4

Propionibacterium acnes

1.9

      

0.6

Propionibacterium avidium

   

2.8

   

0.2

Serratia sp.

 

0.6

     

0.2

Staphylococcus aureus

0.6

0.6

  

2.2

  

0.6

Staphylococcus capitis

 

0.6

     

0.2

Staphylococcus epidermidis

1.2

5.5

1.7

5.6

4.3

  

3.3

Staphylococcus haemolyticus

  

1.7

 

2.2

  

0.4

Staphylococcus hominis

 

1.1

 

2.8

2.2

  

0.8

Streptococcus agalactiae

1.9

4.4

1.7

11.1

 

4.5

75.0

4.5

Streptococcus anginosus group

3.1

3.9

1.7

5.6

4.3

9.1

 

3.7

Streptococcus gallolyticus

  

1.7

    

0.2

Streptococcus mitis

   

2.8

2.2

  

0.4

Streptococcus salivarius

0.6

1.7

     

0.8

Veilllonella atypica

1.2

0.6

 

2.8

   

0.8

Veillonella sp.

0.6

1.1

  

2.2

  

0.8

  1. a Numbers represent percentage of samples from which the species was cultured.
  2. b Formerly known as Peptostreptococcus.
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BMC Microbiology

ISSN: 1471-2180

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