Identification of serotype 9 human rotavirus by enzyme-linked immunosorbent assay with monoclonal antibodies

Hybridomas producing monoclonal antibodies to VP7, a major neutralizing protein of serotype 9 rotavirus (strain W161), were prepared. One monoclonal antibody, W161-6A1, was shown to neutralize only serotype 9 rotavirus strains and reacted specifically with serotype 9 rotaviruses in an enzyme-linked immunosorbent assay. The development of an immunoassay for detection of serotype 9 rotaviruses should facilitate epidemiologic studies.