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ARACHNIA
Arachnia propionica (only species)
Facultative anaerobe
Isolated from human actinomycosis and periapical endodontic lesions
Not known whether it plays a role in either
The one species in this genus, Arachnia propionica is a facultative anaerobe.  It has been isolated from human actinomycosis and from periapical endodontic lesions.  However it is not known whether it plays a role in either of these infections.
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