Viral gastroenteritis outbreaks associated with new recombinant strain GⅡ.P16/GⅡ.2 of norovirus in Fujian, 2016
10.3969/j.issn.1002-2694.2017.09.010
- VernacularTitle:诺如病毒新重组株GⅡ.P16/GⅡ.2引起福建省2016年冬季病毒性胃肠炎暴发
- Author:
shan Bing WU
1
;
miao Zhi HUANG
;
ming Jian OU
;
qi Xiao QI
;
wei Ye HUANG
;
wei Yu WENG
Author Information
1. 福建省疾病预防控制中心
- Keywords:
viral gastroenteritis;
outbreaks;
norovirus;
GⅡ.P16/GⅡ.2;
molecular characteristic
- From:
Chinese Journal of Zoonoses
2017;33(9):805-808,813
- CountryChina
- Language:Chinese
-
Abstract:
We delineated the molecular characteristic of recombinant strain GⅡ.P16/GⅡ.2 of norovirus associated with acute viral gastroenteritis outbreaks in Fujian Province in winter of 2016.Norovirus were detected in specimens of patients collected from the gastroenteritis outbreaks by real time reverse transcription-PCR and reverse transcription-PCR (RT-PCR).The PCR products of the positive samples were purified,and partial RNA dependent RNA polymerase (RdRp) gene and partial capsid gene were sequenced.The sequences were analyzed using bioinformatics software and online database,and phylogenetic tree were also constructed.Norovirus were detected in all 18 stools.Analysis of 9 positive sequences indicated an emergence of norovirus GⅡ.P16/ GⅡ.2 and confirmed being the cause of gastroenteritis outbreaks.All the strains shared homology of 98％ with strains of Kawasaki 194 of Japan detected in 2016 and 97.7％-98.8％ with IPH2161-08VG06 of Belgium detected in 2008,RdRp and capsid separately.These outbreak strains showed some degree of differences from the predominant strain,2012 Sydney GⅡ.4 variant.This is the first time to have found norovirus GⅡ.P16/ GⅡ.2 causing viral gastroenteritis outbreaks in Fujian.More in-depth analysis of the Norovirus GⅡ.P16/ GⅡ.2 could be useful to optimize preventative strategies and develop new and more effective therapeutic measure.
