抄録
The skin test by the HS and HV antigens was performed on 516 of 712 individuals belonging to three populations of a different epidemiologic status, and its practicability as an epidemiological tool was evaluated.
1) 85.7 per cent and 74.3 per cent of the positive history group of mumps revealed a positive skin test by the HS and HV antigens, respectively.
2) In the three populations having a different epidemicity of mumps the frequency distribution curves of the size of the erythema by the HS skin test implicated the state of their herd immunity. On the contrary, the HV skin test did not show such a specificity.
3) 5.1 per cent of the positive skin test reactors and 24.1 per cent of the negative reactors were suffering from mumps after the completion of the skin test.
4) It was considered that the positive criteria of both the HS and HV skin tests should be an erythema exceeding 10mm by the 24-hour reading.
5) In the first and second reports several differences were mentioned between the HS and HV skin tests. The HS antigen is considered to be superior to the HV antigen as an indicator for mumps immunity; there exists a reasonable correlation between the blood antibody level and the skin test.
