Objective To study the pathogenic relationship between Norwalk-like virus (NLVs) and sporadic adult cases with acute viral diarrhea in Guangzhou, and to determine the genotypes of the NLVs.

• 目的探讨诺瓦克样病毒与广州成人散发急性腹泻的病原关系和感染毒株的基因型别。