NCIt definition : A species of facultatively anaerobic, Gram negative, rod shaped bacteria in the phylum
Proteobacteria. This species is non motile, indole negative, cannot ferment lactose
and produces Shiga toxin. S. dysenteriae is a pathogen that causes severe forms of
shigellosis in primates.;
Alternative definition : CDISC: Any bacterial organism that can be assigned to the species Shigella dysenteriae.;