A newly emerged pandemic Sydney GII.4-like norovirus (NoV) (Jingzhou GII.4) was isolated in Jingzhou, China in April, 2013, demonstrating the rapid spread of the variant to China. The complete nucleotide sequence was compared with the prototype Sydney 2012 variant and its VP1 gene with that of Huzhou strain (isolated in January 2013 in Huzhou, China). The result demonstrates that the new variant has evolved rapidly, including mutations in the hypervariable P2 domain of the major capsid protein VP1. Our study also shows that the new Jingzhou GII.4 variant co-circulated with GII.3 and GI.2 at the same time, supporting further monitoring of the evolution of the new NoV variant in China.
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