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Virologica Sinica, 11 (3) : 230, 1996
Transovarial transmission of dengue viruses in Aedes albopictus and Aedes aegypti mosquitoes
Institute of epidemic provention,Yunnan Province
edes albopictus and Ae. aegypti mosquitoes from maialand China were tested for their abil-ity to transovarial transmission of dengue(DEN) viruses. DEN1~4 viruses for experiment wereprototype dengue strains(Hawaii,New Guinea,H87 and H241)and Ban18 strain of DEN4 isolat-ed from Yunnan,China.Parental females of Ae. albopictus and Ae aegypti were orally infectedwith DEN1~4 viruses,and 4559 larvae and adult of F1 and F2 generations from infected motherswere divided into 10 pools for the detection of the viruses. The positive rates of pools from Ae.albopictus of F1 were 10%(1/10) for DEN1,22.22%(2/9) for DEN2,33.33%(4/12)forDEN3 and 28.95%(11/38)for DEN4.The minimum filial infection rates(MFIR) of Ae.al-bopictus of F1 were successively 0.20%,0.71%,0.70%and 0.63%for DEN1~4.The positiverates of pools and MFIR from Ae.albopictus of F2 were 35.29%(6/17)and 0.93% for DEN 4.The positive rates of pcols from Ae.aegypti of F1 and F2 were 60%(3/5)and 33.33%(3/9),and their MFIR were 0.63 % and 0.60% for DEN4,respectively.
  Published online: 5 Sep 1996
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