Variola minor in Bragança Paulista County, 1956. Plan of the serological study and some general results.
D000914:Antibodies, Viral / Q000032:analysis; D001938:Brazil; D003168:Complement Fixation Tests; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D012899:Smallpox / Q000453:epidemiology* / Q000276:immunology; D012901:Variola virus / Q000276:immunology
D000914:Antibodies, Viral