1997-1998泰国的全国样本结核分枝杆菌限制性内切酶片段长度多态性研究
Restriction fragment length polymorphism study of nationwide samples of Mycobacterium tuberculosis in Thailand, 1997-1998
摘要
地点:1997-1998 年间,作为全球项目的一部分,在泰国进行了全国性的抗结核药物耐药监测。目的:评价 IS6110 杂交带谱和成簇的水平,由于样本收集时间较短,预计不会太高。设计:共计 828 株分离株可做标准的 IS6110 杂交指纹分析。结果:随着地理位置、病人年龄、对利福平和链霉素耐药的变化,限制性片段长度多态性也随之变化。北京株在青年病人中常见,离曼谷越远,其流行率也越低,但只有一个杂交带的分离株则正好相反。排除含有 5 个以下拷贝 IS6110 的菌株,26.4%的菌株成簇。成簇在女性患者中更普遍。成簇菌株常常来自不同省份,如果有耐药,它们的耐药谱也不同。结论:在泰国某些地区用 IS6110 杂交带谱的成簇性来推断近期传播的可靠性值得怀疑。在结核病高流行国家进行全国性的近期传播研究的评价应该谨慎。
出处
《结核与肺部疾病杂志》
2005年第4期166-170,共5页
Journal of Tuberculosis and Lung Disease
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