札幌市におけるB溶血レンサ球菌臨床分離株の菌型分布に関する長期的観察 I. A型群溶血レンサ球菌T型分布の31年刊の推移  [in Japanese] Long-Term Obsevations on Type Distribution of Clinical Isolated of B-Hemolytic Streptococci in Sapporo I. T-type Distribution of Group A Hemoutic Steptococci during the Thrty One-year Period between 1969 and 1999  [in Japanese]

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Abstract

1969年から99年までの31年間に市立札幌病院で分離されたA群溶血レンサ球菌6, 866株についてT型別を行い以下の結果を得た.菌株の内訳は狸紅熱患者株 (狸紅熱株) 5, 866株, 小児患者株 (小児株) 450株, 成人患者株 (成人株) 141株, および由来不明株409株である.<BR>1.分離された菌型と分離頻度はT12型44.1%, T4型21.7%, T1型9.2%, T6型4.4%, T3型28%, T22型21%, T18型1.9%, T28型1洛%で, その他7菌型で計16種類が検出されていた.T12型, T4型, T1型が主流菌型を形成し, 全国的な傾向と一致していた.T6型のように札幌市独自の菌型の流行も見られた.<BR>2. 各菌型は4~8年間隔の流行波を形成する傾向が見られた.特にT1型やT4型においてその傾向が強く示されていた.T3型とT6型は突発的に増減するパターンを繰り返していた.<BR>3. 猩紅熱株ではT12型 (477%) とT4型 (225%) が有意に高かった (p<0.005). T1型は患者群や各年齢層に関係なく広く分布していた.成人株においては全体的に多くの菌型に分布しているのが特徴であった.

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 childpatients (child-strains), 141 of adult-patients (adult-strains) and 409 strains of the indistinct.<BR>The results were summarized as follows:<BR>1. Total of 6, 866 strains were clasified to sixteen kinds of T-types such as T12 (44.1%), T4 (21.7%), Ti (9.2%), T6 (4.4%), T3 (2.8%), T22 (2.1%), T18 (1.9%), T28 (1.6%) & others. This pattern of type distribution, three prevailing types of T12/T4/T1, have been reported in other areas generally. But original increase of isolation rates of strains of some T-types as T6, for example, also appeared in Sapporo.<BR>2. Long-term observations demonstrated that the isolation rates of individual T-type, especially T4 or T1, had been forming a small epidemic-wave having a 4 to 8 year-interval and these of type T3 or type T6 on the other hand were repeating sudden prevalance every several years.<BR>3. The isolation rates of type T12 or type T4 in scarlet fever-strains, were significantly higher than in child-strains or adult-strains.<BR>It was shown that Type Ti was distributed widely irrespective of patient-group and age-group. It was also characteristic to be distributed to many T-types in adult-strains

Journal

  • Kansenshogaku Zasshi

    Kansenshogaku Zasshi 75(3), 167-173, 2001-03-20

    The Japanese Association for Infectious Diseases

References:  19

Cited by:  3

Codes

  • NII Article ID (NAID)
    10008702794
  • NII NACSIS-CAT ID (NCID)
    AN00047715
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03875911
  • NDL Article ID
    5724392
  • NDL Source Classification
    ZS9(科学技術--医学--病理学・微生物学・寄生虫学・感染・免疫学・血清学・アレルギー)
  • NDL Call No.
    Z19-193
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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