The administration of three different lots of γ-globulin was found to significantly reduce the incidence of clinical rubella among recruits at the Naval Training Center, Great Lakes, III, in 1963. The magnitude of the reduction was dependent upon the dose administered, with a dose of 0.0613 ml or greater per pound contributing to the greatest reduction in incidence.
Miller CH, Dowd JM, Rytel MW, Miller LF, Pierce WE. Prevention of Rubella With γ-Globulin. JAMA. 1967;201(7):560-561. doi:10.1001/jama.1967.03130070080031