中国寄生虫学与寄生虫病杂志 ›› 2007, Vol. 25 ›› Issue (1): 14-64.

• 防治研究 • 上一篇    下一篇

甘肃省文县流行区人群婴儿利什曼原虫无症状感染现状

汪俊云1;冯宇2;高春花1;金长发1;陈生邦2;张丑吉2;何金萍2;杨成明2;杨玥涛1;包意芳1   

  1. 1 中国疾病预防控制中心寄生虫病预防控制所, WHO疟疾、血吸虫病和丝虫病合作中心, 上海 200025; 2 甘肃省疾病预防控制中心寄生虫病防制科, 兰州 730020
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-02-28 发布日期:2007-02-28

Asymptomatic Leishmania Infection in Human Population of Wenxian County, Gansu Province

WANG Jun-yun1;FENG Yu2;GAO Chun-hua1;JIN Chang-fa1;CHEN Sheng-bang2;ZHANG Chou-ji2;HE Jin-ping2;YANG Chen-ming2;YANG Yue-tao1;BAO Yi-fang1   

  1. 1 National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Malaria, Schistosomiasis and Filariasis, Shanghai 200025, China; 2 Department of Parasitic Disease Control, Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730020, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-02-28 Published:2007-02-28

摘要: 目的 分析甘肃省文县内脏利什曼病流行区人群利什曼原虫无症状感染现状,评价PCR、ELISA和rK39免疫层析试条法检测利什曼原虫无症状感染的潜能。 方法 2004年10月在甘肃文县对269例无内脏利什曼病现症及病史的人群采取随机取样法采集静脉血,分别用RV1?鄄RV2和K13A-K13B两组PCR引物检测血样中的利什曼原虫特异DNA,以利什曼原虫可溶性抗原为包被抗原的ELISA法和rK39免疫层析试条法分别检测利什曼原虫特异性抗体,并比较几种检测方法的敏感性。 结果 PCR、ELISA和rK39免疫层析试条法检测人群利什曼原虫无症状感染的阳性率分别为30.9%(83/269)、24.2%(65/269)和0(0/269)。 结论 甘肃省文县内脏利什曼病流行区人群存在大量利什曼原虫无症状感染者,PCR是检测无症状感染较敏感、特异的方法。

关键词: 利什曼原虫, 无症状感染, PCR, ELISA, rK39免疫层析

Abstract: Objective To analyze the status of Leishmania infantum asymptomatic infection in human population of a Kala-azar endemic area in Wenxian County, Gansu Province, and to evaluate the tests used. Methods Blood samples were tested by PCR using two pairs of primers, RV1-RV2 and K13A-K13B, for detecting Leishmania-specific DNA. ELISA and rK39-dipstick were used to detect Leishmania-specific antibodies. Results The positive rate of PCR, ELISA and rK39-dipstick was 30.9%(83/269), 24.2%(65/269) and 0(0/269) respectively. Conclusion The prevalence of asymptomatic infection of L. infantum in humans is high in the area. PCR test based on RV1-RV2 and K13A-K13B primer pairs is a sensitive and specific method for detecting the asymptomatic infection.

Key words: Leishmania infantum, Asymptomatic infection, PCR, ELISA, rK39-dipstick