[Long-term observations on type distribution of clinical isolates of beta-hemolytic streptococci in Sapporo. II. Type distribution of Group B streptococci during the fifteen-year period between 1985 and 1999].

During the fifteen-year period between 1985 and 1999, a total of 1,985 strains of Group B Streptococci isolated in Sapporo City General Hospital were classified by agglutination method. The results were summarized as follows: 1. Type distribution of 1,513 isolates of group B streptococci in and after 1992 when type NT6 and type JM9 were started to be typed for the first time was as follows; according to rate isolation it was in the order of type NT6 (412 strains 27.

[Long-term observations on type distribution of clinical isolated of beta-hemolytic streptococci in Sapporo. I. T-type distribution of group A hemolytic streptococci during the thirty one-year period between 1969 and 1999].

During the thirty one-year period between 1969 and 1999, a total of 6,876 strains of group A streptococci isolated in Sapporo City General Hospital were classified by T-agglutination method. This research consisted of 5,866 strains of scarlet fever-patients (scarlet fever-strains), 450 of child-patients (child-strains), 141 of adult-patients (adult-strains) and 409 strains of the indistinct. The results were summarized as follows: 1.