The development of cellular hypersensitivity in man after a primary immunization.
D000906:Antibodies / Q000032:analysis*; D000941:Antigens; D002003:Brucella abortus; D006386:Hemagglutination Tests; D006801:Humans; D006967:Hypersensitivity / Q000209:etiology*; D007114:Immunization; D007962:Leukocytes / Q000276:immunology*; D008722:Methods
D000906:Antibodies; D000941:Antigens