1 Research Associate, University of. Pennsylvania, Philadelphia, Pennsylvania
In the note published by Drs. Aronson and Lepow, "The Effect of Repeated Mumps Skin Tests on the Skin Sensitivity to Mumps Antigen" (Pediatrics, 36:422), the 3 injections of skin test antigen were not followed by skin sensitivity. In an attempt to produce immunity within the incubation period of mumps infection, one intradermal skin test followed by 10 cc. of mumps vaccine injected intramuscularly produced a skin-test conversion in only 7 out of 18 children, of these only 2 developed neutralizing antibody.