中国産ヒトスジシマカ, ネッタイシマカのチクングニアウイルス感受性
1999 年 50 巻 1 号 p. 61-64
詳細
1999 年 50 巻 1 号 p. 61-64
Infection rates and mean titers of the infected mosquitoes were compared in the strains of Aedes albopictus from Shanghai and Changdu, and Ae. aegypti from Dianbai and Haikaou on the 14th day after feeding on a blood-virus mixture. The infection rate of the Shanghai strain of Ae. albopictus was 86.7%; it showed the highest rate among 4 strains. The infection rate of the Changdu strain was 50%. On the other hand the infection rates of the Dianbai and the Haikaou strains of Ae. aegypti were 18.8% and 9.1%, respectively. The mean virus titer of infected individuals of the Shanghai strain was (10)^<4.2> PFU and that of the Changdu strain was (10)^<3.3> PFU. The mean virus titer of the Dianbai strain showed (10)^<3.9> PFU. Though the infection rates of the two strains of Ae. aegypti were lower than the rates of the two stains of Ae. albopicus, virus titers of infected individuals were high comparatively. These data indicated the Shanghai strain of Ae. albopictus had the ability to transmit the chikungunya virus.
