Table 2.

Classification schemes for HuCVs

Classification method   Groups
MorphologicSmall round viruses, SRSVs, “typical” caliciviruses
Antigenic
 IEMIEM types, SPIEM types
 Reactivity with VLP-specific immune sera   Antigenic groups
 Cross-protection in experimental human infection  Antigenic types, possibly serotypes
Genetic (based on sequence information)  Genera (NLVs, SLVs), further divided into genogroups, further divided into genetic clusters