| [accumulative vaccination rate of rubella and positive antibody rate in an area of japan--future problems with rubella]. | the rubella vaccination rate remarkably decreased in japan after a revised vaccination law was passed in 1994, as a result of which individual vaccination replaced mass vaccination at each school. we investigated the rubella antibody of 887 students and the accumulative rubella vaccination rate in an area of okayama. the vaccination rate in ibara, where children were inoculated individually, was 22.8%. in contrast, in yoshii, where the vaccination was done as mass at each school, the rate was 89 ... | 1999 | 10565119 |