title: Prevalence of Listeria monocytogenes in intestinal contents of healthy animals in Japan.
abstract: A total of 1,705 fecal specimens or ileo-cecal contents of cattle, pigs, dogs, cats, chicken and rats were submitted for the isolation of Listeria monocytogenes by the use of the combination of Oxford-LPM agar plates after the cold enrichment in PBS at 4 degrees C for 4-6 weeks. Prevalence of L. monocytogenes was found to be 1.9% in cattle, 0.6% in pigs, 0.9% in dogs and 6.5% in rats. However, none of L. monocytogenes was isolated from chicken or cats. Among 26 isolates of L. monocytogenes, 13 strains (50%) were classified into types 1/2a (3 strains), 1/2b (5 strains) and 4b (5 strains) and were often associated with human listeriosis. The majority of the Listeria spp. other than L. monocytogenes isolated from these animals was found to be L. innocua.
authors.affiliation: Tokyo Metropolitan Research Laboratory of Public Health, Tokyo, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Iida
authors.forename: M
authors.initials: M
authors.lastname: Kanzaki
authors.forename: T
authors.initials: T
authors.lastname: Maruyama
authors.forename: S
authors.initials: S
authors.lastname: Inoue
authors.forename: C
authors.initials: C
authors.lastname: Kaneuchi
mesh_terms: D000818:Animals; D002415:Cats; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology / Q000382:microbiology; D002432:Cecum / Q000382:microbiology; D002645:Chickens; D004283:Dog Diseases / Q000453:epidemiology / Q000382:microbiology; D004285:Dogs; D005243:Feces / Q000382:microbiology*; D005766:Gastrointestinal Contents / Q000382:microbiology*; D007082:Ileum / Q000382:microbiology; D007564:Japan / Q000453:epidemiology; D008087:Listeria / Q000302:isolation & purification; D008089:Listeria monocytogenes / Q000302:isolation & purification*; D008088:Listeriosis / Q000453:epidemiology / Q000382:microbiology / Q000662:veterinary*; D015995:Prevalence; D051381:Rats; D012376:Rodent Diseases / Q000453:epidemiology / Q000382:microbiology; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology / Q000382:microbiology