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

Hu, Wenbiao, Tong, Shilu, Mengerson, Kerrie, Oldenburg, Brian and Dale, Pat (2006) Mosquito species (Diptera: Culicidae) and the transmission of Ross River virus in Brisbane, Australia. Journal of Medical Entomology, 43 2: 375-381. doi:10.1603/0022-2585(2006)043[0375:MSDCAT]2.0.CO;2


Author Hu, Wenbiao
Tong, Shilu
Mengerson, Kerrie
Oldenburg, Brian
Dale, Pat
Title Mosquito species (Diptera: Culicidae) and the transmission of Ross River virus in Brisbane, Australia
Formatted title
Mosquito species (Diptera: Culicidae) and the transmission of Ross River virus in Brisbane, Australia
Journal name Journal of Medical Entomology   Check publisher's open access policy
ISSN 0022-2585
Publication date 2006-03-01
Sub-type Article (original research)
DOI 10.1603/0022-2585(2006)043[0375:MSDCAT]2.0.CO;2
Volume 43
Issue 2
Start page 375
End page 381
Total pages 6
Place of publication Lanham, MD, USA
Publisher Entomological Society of America.
Language eng
Subject 11 Medical and Health Sciences
1103 Clinical Sciences
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.Ourresults show that Aedes vigilax (Skuse) (relative risk[RR]1.32; 95% CI1.01Ð1.74 per 100 mosquitoes per trap) and Culex annulirostris (Skuse) (RR1.14, 95% CI 1.04Ð1.24 per 100 mosquitoes per trap) were most strongly associated with RRV transmission at a lag of 1 mo. ClassiÞcation 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%; speciÞcity, 80%). The results may have applications as a decision support tool in planning disease control and risk-management programs.
Keyword Mosquito species
Time series Poisson regression model
Classification and regression trees
Ross River virus
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Public Health Publications
 
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Created: Thu, 17 Dec 2009, 21:38:06 EST by Christine Ouslinis on behalf of Faculty Of Health Sciences