最近分離されたB群溶血連鎖球菌の血清型について

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タイトル別名
  • Sero-type of Group B Streptococci Isolated in Japan in Recent Years
  • サイキン ブンリサレタ Bグン ヨウケツ レンサ キュウキン ノ ケツセイガタ

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In recent years there have been reported many cases of group B streptococcal infection in the newborns.<BR>In this report the authors conducted sero-typing of the total of 217 strains of group B streptococci isolated from clinical cases in various parts of Japan during the period of 1976-1978 and from healthy school children during the period of 1973-1975. The following results were obtained.<BR>1. Among 80 cases of clinical cases, who had been well documented, the 34 strains were isolated from cerebrospinal fluid and/or blood of the neonatal patients suffering frommeningitis and/or sepsis.<BR>The 11 s trains were from the newborns, who were small for date or of amniotic infection syndrome, including the newborns without a clinical sign. And 9 strains were from vaginal cultures of the mothers of the newborns suffering from meningitis and/cr sepsis.<BR>2. The most prevalent types were type III (31.3%), type III-R (25.0%) and type Ia (22.5%).<BR>3. Of 32 cases with meningitis and/or sepsis, 15 cases were of so-called early onset type and 17 cases were of late onset type according to the criteria by Baker.<BR>The most prevalent sero-types for both were type III and type III-R, and there was obsered no difference between two Baker's types in the distribution of serotypes. This is a little different situation from the reports of other countries on the distributior of sero-types among the patients of early onset and late onset type.<BR>4. The positive rate of group B streptococci among healthy primary school children was 1.1 on the average and the most prevalent types were type Ia (29.1%), type III (27.2%) and type Ic (27.2%), showing a little difference from the results on the clinical cases of neonatal infection by group B streptococci in the above.

収録刊行物

  • 感染症学雑誌

    感染症学雑誌 54 (1), 22-28, 1980

    一般社団法人 日本感染症学会

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