Liebhaber, H Vaccination with RA 27-3 rubella vaccine. Persistence of immunity and resistance to challenge after two years. [electronic resource] - American journal of diseases of children (1960) Feb 1972 - 133-6 p. digital Publication Type: Journal Article ISSN: 0002-922X Subjects--Topical Terms: AdolescentAntibodiesChildComplement Fixation TestsCulture TechniquesFluorescent Antibody TechniqueHemagglutinationHumansImmunityRubella--prevention & controlRubella VaccineRubella virusTime FactorsVaccinationViral Vaccines