Genetic variation of the norovirus GII-4 genotype associated with a large number of outbreaks in Chiba prefecture, Japan.
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.
Okada
M
M
Division of Virology, Chiba Prefectural Institute of Public Health, Chiba, Japan. m.okd4@mc.pref.chiba.lg.jp
Ogawa
T
T
Yoshizumi
H
H
Kubonoya
H
H
Shinozaki
K
K
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