title: Comparison of genomic structures in the serovar 1/2a Listeria monocytogenes isolated from meats and listeriosis patients in Japan.
abstract: Foodborne disease by Listeria monocytogenes, serovar 1/2a has recently been reported in many countries. Although contamination by this bacteria is also known to be gradually spreading among the marketed foods of Japan, there is little information on relation between listeriosis and food contamination. In the present study, the characteristics of the genomic structures of serovar 1/2a were compared among the isolates from marketed meats and listeriosis patients. Several isolates from meats purchased at the same shop on different days had the same genomic structure, and prolonged contamination was suggested by the conditions in the shop. Genomic structures of one strain isolated from meat were identical to those of two isolates from a patient. Another isolate was obtained from meats purchased at two different shops, and this isolate was also identical to that of the isolates from another patient. These findings suggest that the isolates from meat may have caused the listeriosis in the patients, and that the strains may have somehow traveled between the shops.
authors.affiliation: Department of Veterinary Public Health, Nippon Veterinary and Animal Science University, Tokyo, Japan. fueda@nvau.ac.jp
authors.forename: Fumiko
authors.initials: F
authors.lastname: Ueda
authors.forename: Kyoko
authors.initials: K
authors.lastname: Yugami
authors.forename: Mariko
authors.initials: M
authors.lastname: Mochizuki
authors.forename: Fumiya
authors.initials: F
authors.lastname: Yamada
authors.forename: Kunitoshi
authors.initials: K
authors.lastname: Ogasawara
authors.forename: Akikazu
authors.initials: A
authors.lastname: Fujima
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Shoji
authors.forename: Ryo
authors.initials: R
authors.lastname: Hondo
mesh_terms: D000818:Animals; D001483:Base Sequence; D004269:DNA, Bacterial / Q000235:genetics; D005516:Food Microbiology; D016680:Genome, Bacterial; D006801:Humans; D007564:Japan; D008089:Listeria monocytogenes / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification*; D008088:Listeriosis / Q000382:microbiology*; D008460:Meat / Q000382:microbiology*; D008969:Molecular Sequence Data; D012150:Polymorphism, Restriction Fragment Length; D017386:Sequence Homology, Amino Acid; D012703:Serotyping
chemical_list: D004269:DNA, Bacterial