NCIt definition : A species of facultatively anaerobic, Gram positive, rod shaped bacteria in the phylum
Firmicutes. This species is catalase positive, oxidase negative, nonsporulating, hydrolyzes
esculin and produces acid from glucose and D xylose. L. ivanovii is pathogenic in
animals but not humans.;
Alternative definition : CDISC: Any bacterial organism that can be assigned to the species Listeria ivanovii.;