摘要
Dear Editor,Noroviruses(No Vs)are second only to the rotaviruses as etiologic agents of acute fulminant gastroenteritis in infants and young children worldwide,with an estimated 200,000deaths per year in children younger than 5 years of age in developing countries(Patel et al.2008).No Vs are classified within the genus Norovirus of the family Caliciviridae with Norwalk virus as its prototype member(ICTV 2017).The virions are small(38–40 nm in diameter)nonenveloped,with an icosahedral capsidanda linear,positive-
Dear Editor,Noroviruses（No Vs）are second only to the rotaviruses as etiologic agents of acute fulminant gastroenteritis in infants and young children worldwide,with an estimated 200,000deaths per year in children younger than 5 years of age in developing countries（Patel et al.2008）.No Vs are classified within the genus Norovirus of the family Caliciviridae with Norwalk virus as its prototype member（ICTV 2017）.The virions are small（38–40 nm in diameter）nonenveloped,with an icosahedral capsidanda linear,
基金
supported by General Program of the National Natural Science Foundation of China (31572529)
the National Key Basic Research and Development Program of China (2016YFC1200100)
the Youth Innovation Fund of the Academy of Military Medical Science (2015CXJJ28)
