NCIt definition : A species of facultatively anaerobic, Gram positive, rod shaped bacteria in the phylum
Firmicutes. This species is motile by up to four peritrichous flagella, catalase positive,
hemolytic, produces acid from glucose, trehalose, levulose and salacin, indole negative
and does not reduce nitrate. L. monocytogenes is a food borne pathogen, being the
causative agent of listeriosis in humans and animals.;
Alternative definition : CDISC: Any bacterial organism that can be assigned to the species Listeria monocytogenes.;