Infection and dissemination of dengue virus type 2 in Aedes aegypti, Aedes albopictus, and Aedes scutellaris from the Torres Strait, Australia

被引：31
|
作者：
Moore, Peter R. [2 ]
Johnson, Petrina H. [2 ]
Smith, Greg A. [3 ]
Ritchie, Scott A. [4 ,5 ]
Van den Hurk, Andrew F. [1 ,2 ,3 ]
机构：
[1] Queensland Hlth Sci Serv, Archerfield, Qld 4108, Australia
[2] Univ Queensland, Sch Mol & Microbial Sci, Dept Microbiol & Parasitol, St Lucia, Qld 4072, Australia
[3] Queensland Hlth Sci Serv, Coopers Plains, Qld 4108, Australia
[4] Queensland Hlth, Trop Populat Hlth Unit, Cairns, Qld 4870, Australia
[5] James Cook Univ, Sch Publ Hlth & Trop Med, Cairns, Qld 4870, Australia
来源：
JOURNAL OF THE AMERICAN MOSQUITO CONTROL ASSOCIATION | 2007年 / 23卷 / 04期
关键词：
Aedes; dengue virus; infection; dissemination; Australia;
D O I：
10.2987/5598.1
中图分类号：
Q96 [昆虫学];
学科分类号：
摘要：
To determine their relative roles in transmission of dengue virus (DENV) in the Torres Strait region of northern Australia, we examined infection and dissemination of a sympatric strain of dengue virus type 2 (DENV-2) in Aedes scutellaris, Ae. albopictus, and Ae. aegypti. In experiments using membrane feeders for virus exposure, infection rates were 83% and 43% for Ae. scutellaris and Ae. aegypti, respectively. Salivary gland infection rates for both species were 43%. In experiments using pledgets for virus exposure, infection rates for Ae. aegypti, Ae. scutellaris, and Ae. albopictus were 68%, 55%, and 37%, respectively. Aedes albopictus exhibited the greatest barriers to infection with only 7% tested developing a salivary gland infection, compared to 42% and 24% of Ae. aegypti and Ae. scutellaris, respectively. These results suggest that Ae. scutellaris may have been responsible for DENY transmission on Torres Strait islands, where Ae. aegypti does not occur. In contrast, Ae. albopictus may not be an important vector of DENV-2 from the Torres Strait.
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页码：383 / 388
页数：6
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