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J Clin Microbiol. 1989 February; 27(2): 245-250

Characterization of monoclonal antibodies to human group B rotavirus and their use in an antigen detection enzyme-linked immunosorbent assay.

Department of Virology and Epidemiology, Baylor College of Medicine, Houston, Texas 77030.

ABSTRACT

Three monoclonal antibodies (MAbs)--B5C9, B5E4, and B10G10--to human group B rotavirus, an agent implicated in epidemic outbreaks of diarrhea in the People's Republic of China, primarily in adults, were prepared. MAb reactivity was decreased when virus preparations were treated with EDTA, suggesting reactivity with the outer-capsid protein(s). Competition experiments suggested that these MAbs recognize overlapping epitopes within a single antigenic site. A simple antigen detection enzyme-linked immunosorbent assay (ELISA) specific for the human group B rotavirus was established by using these MAbs as capture antibodies. Fifteen clinical samples obtained from three epidemic areas in the People's Republic of China and previously shown by Chinese scientists to contain group B virus were all positive in the MAb capture antigen detection ELISA, whereas none of the 57 samples lacking the group B virus reacted in the test. The results suggest that this MAb capture antigen detection ELISA will be useful to identify outbreaks caused by the human group B rotavirus and to monitor possible spread of the virus.