摘要
实验研究表明,白纹伊蚊和埃及伊蚊通过叮咬敏感宿主能感染并传播基孔肯雅病毒。对感染雌蚊的子1代,分55批(3070只)检查基孔肯雅病毒,白纹伊蚊的批阳性率:幼虫为46.15％(6/13),雌性成虫为33.33％(4/12),雄性成虫为62.50％(5/8),埃及伊蚊幼虫和雌性成虫的批阳性率分别为18.18％(2/11)和22.22％(2/9)。同时,从两种蚊虫的子2代和子8代成虫中亦查出病毒。表明这两种感染雌蚊都具有将基孔肯雅病毒垂直传播给后代的能力。此结果表明,在自然界中这两种蚊虫在基孔肯雅病毒的保存和传播中起重要作用。
Aedes albopictus and Ae. aegypti mosquitoes were tested for their ability for transovarial transmission of chikungunya ( CHIK ) virus. The strains of CHIK virus employed for B8635, M81 and Ross isolated from Yunnan, China or Africa. Studies showed that these two species of mo squitoes were capable of transmitting CHIK virus by bite to susceptible hosts. Parental females of Ae, albopictus and Ae, aegypti were infected orally with CHIK virus, and 3070 first generation progeny from infected mothers were pooled into 55 pools and examined for the virus. Posi-tive rate of pools from Ae, albopictus were 46.15% ( 6/13 ) for larvae, 33.33% (4/12) for adult females and 62.50% ( 5/8 ) for adult males. Posi-tive rate of pools from Ae, aegypti were 18.18% ( 2/11 ) for larvae and 22.22% ( 2/9 ) for adult females. In another experiment, CHIK viruses were detected in second and third generations progeny obtained from individual infected Ae, albopictus and Ae, aegypti, Based on these stud-ies, infected females were capable of transmitting the virus vertically to their offspring. There was no apparent difference in transovarial transmission capabilities of these two species in orally infected mosquito-es. These results indicate that Ae, albopictus and Ae, aegypti have the potential to play a role in the maintenance of CHIK virus in nature.
出处
《病毒学报》
CAS
CSCD
北大核心
1993年第3期222-227,共6页
Chinese Journal of Virology
关键词
基孔肯雅病毒
白纹伊蚊
埃及伊蚊
Chikungunya virus, Aedes albopictus, Aedes aegypti, Transovarial transmission
