Emergence of the GII4/2006b variant and recombinant noroviruses in China.

Abstract:

: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.

journal_name

J Med Virol

authors

Jin M,Xie HP,Duan ZJ,Liu N,Zhang Q,Wu BS,Li HY,Cheng WX,Yang SH,Yu JM,Xu ZQ,Cui SX,Zhu L,Tan M,Jiang X,Fang ZY

doi

10.1002/jmv.21308

subject

Has Abstract

pub_date

2008-11-01 00:00:00

pages

1997-2004

issue

11

eissn

0146-6615

issn

1096-9071

journal_volume

80

pub_type

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