Systematic Veterinary Bacteriology and Mycology

SYSTEMATICS

Domain	Bacteria
Phylum	Firmicutes
Class	Bacilli
Order	Bacillales
Family	Listeriaceae
Genus	Listeria

• Listeria has been divided into seven species with two distinct groups.
• Among which the Listeria monocytogenes and Listeria ivanovii are haemolytic and pathogenic for animals.
• The Listeria murrayi and Listeria grayi are nonhaemolytic, rarely isolated and considered to be non pathogenic.
• Among which the genus L. monocytogenes, is the cause of septicaemia, abortion and CNS infections in a wide range of animal species including humans.