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Emergence of the GII4/2006b variant and recombinant noroviruses in China
Author(s) -
Jin Miao,
Xie Huaping,
Duan Zhaojun,
Liu Na,
Zhang Qing,
Wu Bingshan,
Li Huiying,
Cheng Weixia,
Yang Suhua,
Yu Jiemei,
Xu Ziqian,
Cui Shuxian,
Zhu Lin,
Tan Ming,
Jiang Xi,
Fang Zhaoyin
Publication year - 2008
Publication title -
journal of medical virology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 121
eISSN - 1096-9071
pISSN - 0146-6615
DOI - 10.1002/jmv.21308
Subject(s) - norovirus , virology , capsid , genotype , acute gastroenteritis , sapovirus , biology , caliciviridae , recombinant dna , virus , molecular epidemiology , genetics , gene
Noroviruses are an important cause of acute gastroenteritis. Increasing data showed that the GII‐4 strains are predominant worldwide and new GII‐4 variants emerge every 1–2 years causing major epidemics. Surveillance of gastroenteritis in hospitalized children under 5 years of age in China is described. Among 1,110 specimens, 114 (10.3%) were positive for noroviruses, which was higher than adenoviruses (7.6%), astroviruses (3.5%), and sapoviruses (0.9%) and only lower than group A rotaviruses (40.6%). Thirty‐eight of the 114 positive norovirus cases were co‐infected with other enteric viruses. Five norovirus genotypes (GI‐2, GI‐4, GII‐3, GII‐4, and GII‐14) were detected, with GII‐4/2006b the most predominant type (64.9%). The reported recombinant of GII‐3 capsid and GII‐4 polymerase described previously was also detected frequently and a recombinant of GII‐14 capsid and GII‐6 polymerase was found for the first time. This study suggests that continual surveillance focusing on strain variation and dynamic change is important for understanding the epidemiology and development of a strategy for disease control and prevention. J. Med. Virol. 80:1997–2004, 2008. © 2008 Wiley‐Liss, Inc.