摘要
云南株白纹伊蚊通过吸食含病毒的血餐或叮吸有病毒血症的小鸡血,能感染登革和乙型脑炎病毒,并能在蚊体内增殖。感染蚊经叮咬吸血,能将这两种病毒传播给乳鼠或小鸡。雌蚊感染后第10天,对乳鼠的传播率登革1、2、3、4型和乙型脑炎依次为22.22%、37.50%、25.00%、44.44%和37.50%;对小鸡的传播率登革4型和乙型脑炎分别为100%和66.67%。实验结果表明,白纹伊蚊在登革和乙型脑炎病毒保存和传播中起重要作用。
The studies showed that Yunnan strain of Aedes albopictus could be infected and multiply dengue (DEN) and Japanese encephalitis (JE) viruses in their bodies by ingesting blood-virus meal,or biting viremic chickens. Infected female mosquitoes were capable of transmitting DEN and JE virusesto suckling mice and chickens by biting and blood-sucking. Their transmission rates to suckling mice were22. 22% for DENI, 37. 50% for DEN2, 25. 00% for DEN3, 44.44% for DEN4 and 37. 50% for JE onthe 10th day after infection, and transmission rates to chickens were 100 % for DEN4 and 66. 67% forJE on the 10th day after infection. These results indicate that Ae. albopictus mosquitoes have the potential to play a role in the maintenance and transmission of DEN and JE viruses in nature.
出处
《中国媒介生物学及控制杂志》
CAS
CSCD
1997年第1期50-53,共4页
Chinese Journal of Vector Biology and Control
基金
云南省卫生厅科研基金
关键词
白纹伊景
登革病毒
乙型脑炎病毒
感染
传播率
Aedes albopictus Dengue virus Japanese encephalitis virus Oral infectionTransmission rate