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  • Mosquito species (Diptera: Culicidae) and the transmission of Ross River virus in Brisbane, Australia

    Author
    Hu, Wenbiao
    Tong, Shilu
    Mengersen, Kerrie
    Oldenburg, Brian
    Dale, Patricia
    Year published
    2006
    Metadata
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    Abstract
    This study aimed to identify the major mosquito vectors of Ross River virus (family Togaviridae, genus Alphavirus, RRV) and to explore the threshold of mosquito abundance necessary for RRV transmission in Brisbane, Australia. Data on the monthly counts of RRV cases by statistical local areas from the Queensland Health and the monthly mosquito abundance in Brisbane between November 1998 and December 2001 from the Brisbane City Council were used to assess the pairwise relationship between mosquito abundance and the incidence of RRV disease over a range of time lags using cross-correlations. We used time series Poisson regression models to identify major mosquito species associated with incidence of RRV after adjusting for overdispersion, maximum temperature, autocorrelation, and seasonality. Our results show that Aedes vigilax (Skuse) (relative risk [RR] = 1.32; 95% CI = 1.01-1.74 per 100 mosquitoes per trap) and Culex annulirostris (Skuse) (RR = 1.14, 95% CI = 1.04-1.24 per 100 mosquitoes per trap) were most strongly associated with RRV transmission at a lag of 1 mo. Classification and regression tree (CART) analyses indicate that the occurrence of RRV was associated with an average monthly mosquito abundance of Aedes vigilax above 72 and Cx. annulirostris above 52. The validation analyses indicate that the crude agreement between predicted values and actual observations was 76% (sensitivity, 61%; specificity, 80%). The results may have applications as a decision support tool in planning disease control and risk-management programs.
    Journal Title
    Journal of Medical Entomology
    Volume
    43
    Issue
    2
    Publisher URI
    http://www.entsoc.org/Pubs/Periodicals/JME/index.htm
    DOI
    https://doi.org/10.1093/jmedent/43.2.375
    Copyright Statement
    © 2006 Entomological Society of America. This article is the copyright property of the Entomological Society of America and may not be used for any commercial or other private purpose without specific written permission of the Entomological Society of America
    Publication URI
    http://hdl.handle.net/10072/11448
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    • Journal articles

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