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Published in: EcoHealth 1/2019

01-03-2019 | Original Contribution

Linking Bird and Mosquito Data to Assess Spatiotemporal West Nile Virus Risk in Humans

Authors: Benoit Talbot, Merlin Caron-Lévesque, Mark Ardis, Roman Kryuchkov, Manisha A. Kulkarni

Published in: EcoHealth | Issue 1/2019

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Abstract

West Nile virus (WNV; family Flaviviridae) causes a disease in humans that may develop into a deadly neuroinvasive disease. In North America, several peridomestic bird species can develop sufficient viremia to infect blood-feeding mosquito vectors without succumbing to the virus. Mosquito species from the genus Culex, Aedes and Ochlerotatus display variable host preferences, ranging between birds and mammals, including humans, and may bridge transmission among avian hosts and contribute to spill-over transmission to humans. In this study, we aimed to test the effect of density of three mosquito species and two avian species on WNV mosquito infection rates and investigated the link between spatiotemporal clusters of high mosquito infection rates and clusters of human WNV cases. We based our study around the city of Ottawa, Canada, between the year 2007 and 2014. We found a large effect size of density of two mosquito species on mosquito infection rates. We also found spatiotemporal overlap between a cluster of high mosquito infection rates and a cluster of human WNV cases. Our study is innovative because it suggests a role of avian and mosquito densities on mosquito infection rates and, in turn, on hotspots of human WNV cases.
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Metadata
Title
Linking Bird and Mosquito Data to Assess Spatiotemporal West Nile Virus Risk in Humans
Authors
Benoit Talbot
Merlin Caron-Lévesque
Mark Ardis
Roman Kryuchkov
Manisha A. Kulkarni
Publication date
01-03-2019
Publisher
Springer US
Published in
EcoHealth / Issue 1/2019
Print ISSN: 1612-9202
Electronic ISSN: 1612-9210
DOI
https://doi.org/10.1007/s10393-019-01393-8

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