Modeling dynamics of culex pipiens complex populations and assessing abatement strategies for West Nile Virus.

The primary mosquito species associated with underground stormwater systems in the United States are the Culex pipiens complex species. This group represents important vectors of West Nile virus (WNV) throughout regions of the continental U.S. In this study, we designed a mathematical model and comp...

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Autores principales:	Kasia A Pawelek, Patrick Niehaus, Cristian Salmeron, Elizabeth J Hager, Gregg J Hunt
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/58b028ac19994c8782fcb725f81d4abf
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spelling	oai:doaj.org-article:58b028ac19994c8782fcb725f81d4abf2021-11-25T05:58:45ZModeling dynamics of culex pipiens complex populations and assessing abatement strategies for West Nile Virus.1932-620310.1371/journal.pone.0108452https://doaj.org/article/58b028ac19994c8782fcb725f81d4abf2014-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0108452https://doaj.org/toc/1932-6203The primary mosquito species associated with underground stormwater systems in the United States are the Culex pipiens complex species. This group represents important vectors of West Nile virus (WNV) throughout regions of the continental U.S. In this study, we designed a mathematical model and compared it with surveillance data for the Cx. pipiens complex collected in Beaufort County, South Carolina. Based on the best fit of the model to the data, we estimated parameters associated with the effectiveness of public health insecticide (adulticide) treatments (primarily pyrethrin products) as well as the birth, maturation, and death rates of immature and adult Cx. pipiens complex mosquitoes. We used these estimates for modeling the spread of WNV to obtain more reliable disease outbreak predictions and performed numerical simulations to test various mosquito abatement strategies. We demonstrated that insecticide treatments produced significant reductions in the Cx. pipiens complex populations. However, abatement efforts were effective for approximately one day and the vector mosquitoes rebounded until the next treatment. These results suggest that frequent insecticide applications are necessary to control these mosquitoes. We derived the basic reproductive number (ℜ0) to predict the conditions under which disease outbreaks are likely to occur and to evaluate mosquito abatement strategies. We concluded that enhancing the mosquito death rate results in lower values of ℜ0, and if ℜ0<1, then an epidemic will not occur. Our modeling results provide insights about control strategies of the vector populations and, consequently, a potential decrease in the risk of a WNV outbreak.Kasia A PawelekPatrick NiehausCristian SalmeronElizabeth J HagerGregg J HuntPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 9, p e108452 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kasia A Pawelek Patrick Niehaus Cristian Salmeron Elizabeth J Hager Gregg J Hunt Modeling dynamics of culex pipiens complex populations and assessing abatement strategies for West Nile Virus.
description	The primary mosquito species associated with underground stormwater systems in the United States are the Culex pipiens complex species. This group represents important vectors of West Nile virus (WNV) throughout regions of the continental U.S. In this study, we designed a mathematical model and compared it with surveillance data for the Cx. pipiens complex collected in Beaufort County, South Carolina. Based on the best fit of the model to the data, we estimated parameters associated with the effectiveness of public health insecticide (adulticide) treatments (primarily pyrethrin products) as well as the birth, maturation, and death rates of immature and adult Cx. pipiens complex mosquitoes. We used these estimates for modeling the spread of WNV to obtain more reliable disease outbreak predictions and performed numerical simulations to test various mosquito abatement strategies. We demonstrated that insecticide treatments produced significant reductions in the Cx. pipiens complex populations. However, abatement efforts were effective for approximately one day and the vector mosquitoes rebounded until the next treatment. These results suggest that frequent insecticide applications are necessary to control these mosquitoes. We derived the basic reproductive number (ℜ0) to predict the conditions under which disease outbreaks are likely to occur and to evaluate mosquito abatement strategies. We concluded that enhancing the mosquito death rate results in lower values of ℜ0, and if ℜ0<1, then an epidemic will not occur. Our modeling results provide insights about control strategies of the vector populations and, consequently, a potential decrease in the risk of a WNV outbreak.
format	article
author	Kasia A Pawelek Patrick Niehaus Cristian Salmeron Elizabeth J Hager Gregg J Hunt
author_facet	Kasia A Pawelek Patrick Niehaus Cristian Salmeron Elizabeth J Hager Gregg J Hunt
author_sort	Kasia A Pawelek
title	Modeling dynamics of culex pipiens complex populations and assessing abatement strategies for West Nile Virus.
title_short	Modeling dynamics of culex pipiens complex populations and assessing abatement strategies for West Nile Virus.
title_full	Modeling dynamics of culex pipiens complex populations and assessing abatement strategies for West Nile Virus.
title_fullStr	Modeling dynamics of culex pipiens complex populations and assessing abatement strategies for West Nile Virus.
title_full_unstemmed	Modeling dynamics of culex pipiens complex populations and assessing abatement strategies for West Nile Virus.
title_sort	modeling dynamics of culex pipiens complex populations and assessing abatement strategies for west nile virus.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/58b028ac19994c8782fcb725f81d4abf
work_keys_str_mv	AT kasiaapawelek modelingdynamicsofculexpipienscomplexpopulationsandassessingabatementstrategiesforwestnilevirus AT patrickniehaus modelingdynamicsofculexpipienscomplexpopulationsandassessingabatementstrategiesforwestnilevirus AT cristiansalmeron modelingdynamicsofculexpipienscomplexpopulationsandassessingabatementstrategiesforwestnilevirus AT elizabethjhager modelingdynamicsofculexpipienscomplexpopulationsandassessingabatementstrategiesforwestnilevirus AT greggjhunt modelingdynamicsofculexpipienscomplexpopulationsandassessingabatementstrategiesforwestnilevirus
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Modeling dynamics of culex pipiens complex populations and assessing abatement strategies for West Nile Virus.

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