白纹伊蚊贵州麻尾株垂直传播登革病毒实验研究An Experimental Study on Transovarial Transmission of Dengue Virus in Aedes albopictus of Mawei Strain
赵星,左丽,舒莉萍
ZHAO Xing; ZUO Li; SHU Li-ping(Department of Immunology;
摘要(Abstract):
目的 :研究白纹伊蚊贵州麻尾株对 2型登革病毒 (DEN 2 )的经卵传递能力。方法 :用DEN 2NGC株感染白纹伊蚊贵州麻尾株 ,收集亲代及子 1、2、3代蚊虫标本 ,提取亲代及子代蚊体内病毒总RNA ,通过RT PCR扩增蚊体内DEN 2病毒核酸 ,并用限制性核酸内切酶HinfⅠ酶切鉴定。结果 :感染白纹伊蚊贵州麻尾株后 ,子1~ 3代蚊体内均可检测出病毒核酸。结论 :DEN 2能通过白纹伊蚊贵州麻尾株垂直传播 ,至少可以传 3代。
Objective: To Study the transovarial transmission of dengue virus in Aedes albopictus of Mawei strain. Methods: Adult A. albopictus of Mawei strain was orally infected with dengue-2 virus. Adults of parents and F1~F3 generations of A. albopictus mosquitoes were collected. The total RNA was isolated from the samples collected and the envelope gene of DEN-2 was detected with RT-PCR, and identified with HinfI digestion. Results: Virus nucleic acid were detected from F1~F3 generation of the mosquitoes. Conclusion: These results demonstrate that infected A. albopictus is capable of transmitting dengue virus vertically.
关键词(KeyWords):
登革热病毒;伊蚊属;疾病传播,垂直
dengue virus; Aedes; disease transmission,vertical
基金项目(Foundation): 国家自然科学基金资助项目 (39960 0 0 1 )
作者(Authors):
赵星,左丽,舒莉萍
ZHAO Xing; ZUO Li; SHU Li-ping(Department of Immunology;
DOI: 10.19367/j.cnki.1000-2707.2004.02.001
参考文献(References):
- [1]RobertVGibbons,DavidWVaughn.Dengue:anescalatingproblem[J].BritishMedicalJournal,2002,324(7353):1563-1566.
- [2]陈汉彬.贵州蚊类志[M].贵阳:贵州省人民出版社,1987.121-123.
- [3]张海林,自登云,龚正达.云南省登革热流行病学调查分析[J].地方病通报,1999,14(3):50-54.
- [4]陈斌,梁家素,庞维群,等.广西首次发生Ⅱ型登革热流行[J].中华流行病学杂志,1990,11(2):126.
- [5]舒莉萍,陈阿英,黄大兴,等.贵州省人群登革病毒感染率的调查[J].贵阳医学院学报,1999,(4):340-341.
- [6]张升,何桂铭.我国不同地理株白纹伊蚊对登革病毒的易感性[J].中华流行病学杂志,1989,10(6):348-350.
- [7]陈火胜,郭辉玉,陈焕勇,等.逆转录聚合酶链反应扩增登革病毒Ⅱ型核酸[J].中华微生物和免疫学杂志,1992,(12):123-126.
- [8]林立辉,方美玉,陈翠华,等.白纹伊蚊经口感染、刺叮传播和经卵传递登革病毒的实验研究[J].中国人兽共患病杂志,2000,16(4):25-27.
文章评论(Comment):
|
||||||||||||||||||
|