title: Genetic variation of the norovirus GII-4 genotype associated with a large number of outbreaks in Chiba prefecture, Japan.
abstract: Between October and December, 2006, high activity of three genetically distinct norovirus GII-4 subtypes was observed in Chiba prefecture, Japan. One subtype was newly identified in this period and it was detected in 85% of outbreaks.
authors.affiliation: Division of Virology, Chiba Prefectural Institute of Public Health, Chiba, Japan. m.okd4@mc.pref.chiba.lg.jp
authors.forename: M
authors.initials: M
authors.lastname: Okada
authors.forename: T
authors.initials: T
authors.lastname: Ogawa
authors.forename: H
authors.initials: H
authors.lastname: Yoshizumi
authors.forename: H
authors.initials: H
authors.lastname: Kubonoya
authors.forename: K
authors.initials: K
authors.lastname: Shinozaki
mesh_terms: D017250:Caliciviridae Infections / Q000453:epidemiology* / Q000821:virology; D004196:Disease Outbreaks; D005759:Gastroenteritis / Q000453:epidemiology* / Q000821:virology; D014644:Genetic Variation; D005838:Genotype; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008969:Molecular Sequence Data; D029322:Norovirus / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D010802:Phylogeny; D017422:Sequence Analysis, DNA