NCIt definition : A species of strictly anaerobic, Gram negative, pigment-producing, rod shaped bacteria
assigned to the phylum Bacteroidetes. This bacteria is non-motile, non-spore forming,
bile-resistant, indole positive, catalase negative, hydrolyzes esculin, and does not
reduce nitrate. A. shahii is a commensal organism of the human gastrointestinal tract.;
Alternative definition : CDISC: Any bacterial organism that can be assigned to the species Alistipes shahii.;