Table 2 Major bacterial distributions characterized based on relative taxonomic abundance

phyla

A1

A2

B

Proteobacteria

49.1%

43.2%

25.5%

Firmicutes

30.9%

36.9%

34.9%

Bacteroidetes

9.1%

10.1%

25.9%

Fusobacteriota

0.5%

0.4%

5.0%

genus

A1

A2

B

Streptococcus

18.8%

16.4%

20.1%

Stenotrophomonas

9.2%

14.9%

0.1%

Prevotella

4.5%

1.4%

15.1%

Sphingomonas

13.4%

6.5%

0.1%

Staphylococcus

0.8%

4.3%

0.1%

Phyllobacterium

11.2%

6.3%

0.0%

Neisseria

0.1%

0.3%

6.1%

Haemophilus

0.5%

1.1%

9.6%

Brevundimonas

4.6%

3.7%

0.5%

Porphyromonas

0.0%

0.0%

3.5%

Fusobacterium

0.3%

0.01%

4.0%

Veillonella

1.5%

2.9%

6.8%