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Definition of Listeria monocytogenes
1. Noun. The type species of the genus Listeria; can cause meningitis, encephalitis, septicemia, endocarditis, abortion, abscesses, listeriosis.
Medical Definition of Listeria monocytogenes
1. Rod shaped gram-positive bacterium. It is wide spread and can grow over an unusually wide range of temperatures 0-45C). It is normally saprophytic but is an opportunistic parasite, in that it can survive within cells (particularly leucocytes) and can be transmitted trans placentally. It has caused a number of serious outbreaks of food poisoning with a high mortality rate in recent years. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)