NCIt definition : A species of facultatively anaerobic, gram negative, rod shaped bacteria assigned
to the phylum Proteobacteria. This species is motile by peritrichous flagella, dimethyl
reductase and arginine dehydrolase positive, indole variable and does not produce
acid from salicin or sucrose. C. braakii is most commonly found in soil, food, water,
and the intestinal tract of humans and animals and is an opportunistic pathogen in
immunocompromised patients.;
Alternative definition : CDISC: Any bacterial organism that can be assigned to the species Citrobacter braakii.;