Table 1.

Core group of 18 common bacterial species in human stool^†

Faecalibacterium prausnitzii SL3 3

Roseburia intestinalis M50 1

Bacteroides vulgatus ATCC 8482

Bacteroides sp. 9_1_42FAA

Coprococcus comes SL7 1

Ruminococcus sp SR1 5

Bacteriodes xylanisolvens XB1A

Bacteroides sp. 2_1_7

Bacteroides sp. 2_2_4

Ruminococcus torques L2-14

Bacteroides sp. D4

Bacteroides dorei

Ruminococcus obeum A2-162

Ruminococcus lactaris

Bacteroides capillosus

Bacteroides finegoldii

Clostridium sp M62 1

Clostridium nexile

^†Using 16S rRNA sequencing, 18 species listed above were identified in the stool specimens of all subjects (n=124), 57 in more ≥ 90% and 75 in ≥ 50% of individuals (From Qin et al, 2010).⁶