West Nile virus in overwintering mosquitoes, central Europe

BACKGROUND: West Nile virus (WNV) is currently the most important mosquito-borne pathogen spreading in Europe. Data on overwintering of WNV in mosquitoes are crucial for understanding WNV circulation in Europe; nonetheless, such data were not available so far. RESULTS: A total of 28,287 hibernating...

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Autores principales: Rudolf, Ivo, Betášová, Lenka, Blažejová, Hana, Venclíková, Kristýna, Straková, Petra, Šebesta, Oldřich, Mendel, Jan, Bakonyi, Tamás, Schaffner, Francis, Nowotny, Norbert, Hubálek, Zdeněk
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2017
Materias:
Short Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5625652/
https://www.ncbi.nlm.nih.gov/pubmed/28969685
http://dx.doi.org/10.1186/s13071-017-2399-7
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author Rudolf, Ivo
Betášová, Lenka
Blažejová, Hana
Venclíková, Kristýna
Straková, Petra
Šebesta, Oldřich
Mendel, Jan
Bakonyi, Tamás
Schaffner, Francis
Nowotny, Norbert
Hubálek, Zdeněk
author_facet Rudolf, Ivo
Betášová, Lenka
Blažejová, Hana
Venclíková, Kristýna
Straková, Petra
Šebesta, Oldřich
Mendel, Jan
Bakonyi, Tamás
Schaffner, Francis
Nowotny, Norbert
Hubálek, Zdeněk
author_sort Rudolf, Ivo
collection PubMed
description BACKGROUND: West Nile virus (WNV) is currently the most important mosquito-borne pathogen spreading in Europe. Data on overwintering of WNV in mosquitoes are crucial for understanding WNV circulation in Europe; nonetheless, such data were not available so far. RESULTS: A total of 28,287 hibernating mosquitoes [27,872 Culex pipiens, 73 Anopheles maculipennis (sensu lato), and 342 Culiseta annulata], caught in February or March between 2011 and 2017 in a WNV-endemic region of South Moravia, Czech Republic, were screened for the presence of WNV RNA. No WNV positive pools were found from 2011 to 2016, while lineage 2 WNV RNA was detected in three pools of Culex pipens mosquitoes collected in 2017 at two study sites. CONCLUSIONS: To the best of our knowledge, this is the first record of WNV RNA in overwintering mosquitoes in Europe. The data support the hypothesis of WNV persistence in mosquitoes throughout the winter season in Europe.
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spelling pubmed-56256522017-10-12 West Nile virus in overwintering mosquitoes, central Europe Rudolf, Ivo Betášová, Lenka Blažejová, Hana Venclíková, Kristýna Straková, Petra Šebesta, Oldřich Mendel, Jan Bakonyi, Tamás Schaffner, Francis Nowotny, Norbert Hubálek, Zdeněk Parasit Vectors Short Report BACKGROUND: West Nile virus (WNV) is currently the most important mosquito-borne pathogen spreading in Europe. Data on overwintering of WNV in mosquitoes are crucial for understanding WNV circulation in Europe; nonetheless, such data were not available so far. RESULTS: A total of 28,287 hibernating mosquitoes [27,872 Culex pipiens, 73 Anopheles maculipennis (sensu lato), and 342 Culiseta annulata], caught in February or March between 2011 and 2017 in a WNV-endemic region of South Moravia, Czech Republic, were screened for the presence of WNV RNA. No WNV positive pools were found from 2011 to 2016, while lineage 2 WNV RNA was detected in three pools of Culex pipens mosquitoes collected in 2017 at two study sites. CONCLUSIONS: To the best of our knowledge, this is the first record of WNV RNA in overwintering mosquitoes in Europe. The data support the hypothesis of WNV persistence in mosquitoes throughout the winter season in Europe. BioMed Central 2017-10-02 /pmc/articles/PMC5625652/ /pubmed/28969685 http://dx.doi.org/10.1186/s13071-017-2399-7 Text en © The Author(s). 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Short Report
Rudolf, Ivo
Betášová, Lenka
Blažejová, Hana
Venclíková, Kristýna
Straková, Petra
Šebesta, Oldřich
Mendel, Jan
Bakonyi, Tamás
Schaffner, Francis
Nowotny, Norbert
Hubálek, Zdeněk
West Nile virus in overwintering mosquitoes, central Europe
title West Nile virus in overwintering mosquitoes, central Europe
title_full West Nile virus in overwintering mosquitoes, central Europe
title_fullStr West Nile virus in overwintering mosquitoes, central Europe
title_full_unstemmed West Nile virus in overwintering mosquitoes, central Europe
title_short West Nile virus in overwintering mosquitoes, central Europe
title_sort west nile virus in overwintering mosquitoes, central europe
topic Short Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5625652/
https://www.ncbi.nlm.nih.gov/pubmed/28969685
http://dx.doi.org/10.1186/s13071-017-2399-7
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