中国媒介生物学及控制杂志

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RT-PCR技术在南方虫媒病毒流行病学调查中的应用

方美玉; 蒋廉华; 陈翠华; 白志军; 林立辉; 刘建伟; 赵文忠; 陈唯军   

  1. 广州军区军事医学研究所510507
  • 出版日期:2000-04-20 发布日期:2000-04-20

Investigation on the Distribution of Arbovirus in the South of China by Reverse Transcription Polymerase Chain Reactions

Fang Meiyu; Jiang Lianhua; Chen Cuihua; et al   

  1. Military Medical Institute of Grangzhou Military District,Guangzhou 510507
  • Online:2000-04-20 Published:2000-04-20

摘要: 目的:调查南方地区虫媒病毒感染情况。方法:应用虫媒病毒的通用引物逆转录-聚合酶链反应技术(RT-PCR)。结果:检测110组骚扰阿蚊、90组白纹伊蚊和18组致倦库蚊标本,分别检出15组、9组和2组阳性标本,阳性率分别为13.63%、10%、11.11%;168份发烧病人待查标本中,28份疑似登革热血标本、11份疑似乙型脑炎血标本和3份“不明热”血标本,均扩增出413bp的特异带,证实为虫媒病毒感染。结论:①我国南方地区存在除登革病毒和乙型脑炎病毒外的其它黄病毒感染;②3种蚊虫标本检测出的阳性率表明,还可能存在新虫媒病毒疫源地。

关键词: 虫媒病毒, 逆转录-聚合酶链反应

Abstract: Aim:To investigate the distribution of arbovirus in the south of China. Methods: Serum samples from 168 patients with unkown fever and the samples mosquitoes were assayed by reverse transcription-polymerase chain reaction (RT-PCR). Results: The 413bp specific fragment was amplified in 15 of 110 group samples mosquitoes Aedes subalbatus, 9 of 90 group Aedes albopictus and 2 of 18 group Culex quinquefasciatus. The positive rates were 13.63%,10% and 11.11% repectively. Serum sample from 28 patients with suspected dengue fever, from 11 patients with JEV and from 3 patients with unkown fever was also amplified fragments about 413bp in length. Conclusion: It suggested that there exist more flavivirus infection than DEN and JEV in south China. And from the positive rates of three kinds of mosquitoes samples, we concluded that there perhaps are new arbovirus foci.