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广东省福氏志贺菌毒力基因的研究 被引量:3

Virulence gene of shigella flexneri in Guangdong province
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摘要 目的对2004年广东省4个不同地区分离的35株福氏志贺菌进行毒力基因的检测,以了解其毒力基因的携带情况。方法应用聚合酶链反应(PCR)方法,以志贺肠毒素1(ShET-1)基因set1、志贺肠毒素2(ShET-2)基因sen、侵袭性质粒抗原H基因(ipaH)和侵袭相关位点基因(ial)为靶基因进行检测,并用set1和sen对其进行基因分型。结果35株福氏志贺菌中,有33株(94.29%)为ShET-1阳性,34株(97.14%)为ShET-2阳性,所有菌株的ipaH基因均为阳性,只有20株(57.14%)的ial基因为阳性。35株菌共分3种基因型:1株为set1(-)/sen(-),1株为set1(+)/sen(-),33株为set1(+)/sen(+)。结论广东省的福氏志贺菌的ShET-1和ShET-2携带率非常高,set1(+)/sen(+)为优势基因型。
出处 《华南预防医学》 2006年第2期56-57,60,共3页 South China Journal of Preventive Medicine
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二级参考文献3

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