title: Serum antibodies to B group arboviruses in apparently healthy persons of several districts in Romania.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000914:Antibodies, Viral / Q000032:analysis*; D000937:Antigen-Antibody Reactions; D000956:Antigens, Viral; D001103:Arboviruses / Q000276:immunology*; D004669:Encephalitis Viruses, Tick-Borne / Q000276:immunology*; D004812:Epidemiologic Methods; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D008875:Middle Aged; D009790:Occupations; D012383:Romania; D014902:West Nile virus / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral; D000956:Antigens, Viral