title: Prevalence of antimicrobial resistance among serotypes of Campylobacter jejuni isolates from cattle and poultry in Japan.
abstract: Penner serotypes of C. jejuni in a total of 601 isolates from apparently healthy cattle, layer and broiler chickens in Japan were examined between 2001 and 2006. Predominant serotypes were B (O: 2, 19.1%), D (O: 4, 13.5%), Y (O: 37, 7.3%) and G (O: 8, 5.8%), whereas the remaining serotypes made up less than 5% of the total isolates. The frequency of ampicillin resistance in serotype G (65.6%) was significantly higher than in serotypes D (12.5%), B (11.2%), and Y (0%). Our results suggest that serotype is one factor contributing to the prevalence of ampicillin resistance in C. jejuni isolates.
authors.affiliation: National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1 Tokura, Kokubunji, Tokyo 185-8511, Japan. harada@nval.go.jp
authors.forename: Kazuki
authors.initials: K
authors.lastname: Harada
authors.forename: Manao
authors.initials: M
authors.lastname: Ozawa
authors.forename: Kanako
authors.initials: K
authors.lastname: Ishihara
authors.forename: Ryoji
authors.initials: R
authors.lastname: Koike
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Asai
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Ishikawa
mesh_terms: D000668:Ampicillin Resistance; D000822:Animal Husbandry; D000818:Animals; D002169:Campylobacter Infections / Q000453:epidemiology / Q000662:veterinary; D016123:Campylobacter jejuni / Q000145:classification / Q000187:drug effects / Q000235:genetics*; D002417:Cattle / Q000382:microbiology*; D002645:Chickens / Q000382:microbiology*; D007564:Japan; D008826:Microbial Sensitivity Tests; D017720:Molecular Epidemiology; D011201:Poultry Diseases / Q000453:epidemiology; D012703:Serotyping