Dudding, B A Enteric immunization with live adenovirus type 21 vaccine. I. Tests for safety, infectivity, immunogenicity, and potency in volunteers. [electronic resource] - Infection and immunity Mar 1972 - 295-9 p. digital Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article ISSN: 0019-9567 Standard No.: 10.1128/iai.5.3.295-299.1972 doi Subjects--Topical Terms: Adenoviridae--immunologyAdministration, OralAntibodies, Viral--analysisAntibody FormationClinical Trials as TopicComplement Fixation TestsFeces--microbiologyHumansImmunizationImmunization ScheduleLeukocyte CountMaleMilitary MedicinePlacebosTime FactorsViral Vaccines--administration & dosage