title: Antigenic variation of the viruses belonging to the tick-borne encephalitis complex as revealed by human convalescent serum and monoclonal antibodies.
abstract: Solid-phase enzyme-linked immunoassay (ELISA) was used for the detection of antigenic relationships and/or differences among the viruses belonging to the tick-borne encephalitis (TBE) complex. Monoclonal antibodies of IgM class with haemagglutination-inhibiting activity to the Skalica strain of TBE virus were used to compare the TBE complex viruses. Antigenic analysis of 9 viruses of the TBE complex, isolated from Eurasia and America showed close relationships among them. Nevertheless, it was possible to differentiate the Skalica strain from Langat, louping-ill and Omsk haemorrhagic fever (OHF) viruses by ELISA when monoclonal antibodies and antigens were diluted 1:10,000. Monoclonal antibodies to the Russian spring-summer encephalitis virus did not react with the Skalica strain in immunofluorescence test. By the use of convalescent serum no reaction was found with louping-ill, Russian spring-summer encephalitis, Powassan and OHF viruses in haemagglutination-inhibition (HI) test.
mesh_terms: D000818:Animals; D000833:Animals, Suckling; D000911:Antibodies, Monoclonal / Q000276:immunology; D000956:Antigens, Viral / Q000276:immunology*; D003429:Cross Reactions; D004669:Encephalitis Viruses, Tick-Borne / Q000145:classification / Q000276:immunology*; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D006825:Hybridomas; D007106:Immune Sera / Q000276:immunology; D051379:Mice; D008807:Mice, Inbred BALB C
chemical_list: D000911:Antibodies, Monoclonal; D000956:Antigens, Viral; D007106:Immune Sera