''Collinsella intestinalis'' is a

Gram-positive In bacteriology, gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their type of cell wall. Gram-positive bac ...

and

anaerobic Anaerobic means "living, active, occurring, or existing in the absence of free oxygen", as opposed to aerobic which means "living, active, or occurring only in the presence of oxygen." Anaerobic may also refer to: *Adhesive#Anaerobic, Anaerobic ad ...

bacterium from the genus of ''

Collinsella ''Collinsella'' is a genus of Actinomycetota, in the family Coriobacteriaceae The Coriobacteriaceae a family of Actinomycetota. The family ''Coriobacteriaceae'' has been shown to increase significantly in the ceca of mice in response to st ...

'' which has been isolated from human feces in Japan ''Collinsella intestinalis'' occur in the human intestine.

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Further reading