Vector competence of Swedish Culex pipiens mosquitoes for Japanese encephalitis virus

Background: Japanese encephalitis virus (JEV) is an emerging mosquito-borne Orthoflavivirus that poses a significant public health risk in many temperate and tropical regions in Asia. Since the climate in some endemic countries is similar to temperate climates observed in Europe, understanding the r...

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Main Authors: Krambrich, J., Akaberi, D., Lindahl, Johanna F., Lundkvist, Å., Hesson, J.C.
Format: Journal Article
Language:Inglés
Published: Springer 2024
Subjects:
Online Access:https://hdl.handle.net/10568/141838
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author Krambrich, J.
Akaberi, D.
Lindahl, Johanna F.
Lundkvist, Å.
Hesson, J.C.
author_browse Akaberi, D.
Hesson, J.C.
Krambrich, J.
Lindahl, Johanna F.
Lundkvist, Å.
author_facet Krambrich, J.
Akaberi, D.
Lindahl, Johanna F.
Lundkvist, Å.
Hesson, J.C.
author_sort Krambrich, J.
collection Repository of Agricultural Research Outputs (CGSpace)
description Background: Japanese encephalitis virus (JEV) is an emerging mosquito-borne Orthoflavivirus that poses a significant public health risk in many temperate and tropical regions in Asia. Since the climate in some endemic countries is similar to temperate climates observed in Europe, understanding the role of specific mosquito species in the transmission of JEV is essential for predicting and effectively controlling the potential for the introduction and establishment of JEV in Europe. Methods: This study aimed to investigate the vector competence of colonized <i>Culex pipiens</i> biotype molestus mosquitoes for JEV. The mosquitoes were initially collected from the field in southern Sweden. The mosquitoes were offered a blood meal containing the Nakayama strain of JEV (genotype III), and infection rates, dissemination rates, and transmission rates were evaluated at 14, 21, and 28 days post-feeding. Results: The study revealed that colonized Swedish <i>Cx. pipiens</i> are susceptible to JEV infection, with a stable infection rate of around 10% at all timepoints. However, the virus was only detected in the legs of one mosquito at 21 days post-feeding, and no mosquito saliva contained JEV. Conclusions: Overall, this research shows that Swedish <i>Cx. pipiens</i> can become infected with JEV, and emphasizes the importance of further understanding of the thresholds and barriers for JEV dissemination in mosquitoes.
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spelling CGSpace1418382025-12-08T10:06:44Z Vector competence of Swedish Culex pipiens mosquitoes for Japanese encephalitis virus Krambrich, J. Akaberi, D. Lindahl, Johanna F. Lundkvist, Å. Hesson, J.C. health japanese encephalitis virus vector-borne diseases Background: Japanese encephalitis virus (JEV) is an emerging mosquito-borne Orthoflavivirus that poses a significant public health risk in many temperate and tropical regions in Asia. Since the climate in some endemic countries is similar to temperate climates observed in Europe, understanding the role of specific mosquito species in the transmission of JEV is essential for predicting and effectively controlling the potential for the introduction and establishment of JEV in Europe. Methods: This study aimed to investigate the vector competence of colonized <i>Culex pipiens</i> biotype molestus mosquitoes for JEV. The mosquitoes were initially collected from the field in southern Sweden. The mosquitoes were offered a blood meal containing the Nakayama strain of JEV (genotype III), and infection rates, dissemination rates, and transmission rates were evaluated at 14, 21, and 28 days post-feeding. Results: The study revealed that colonized Swedish <i>Cx. pipiens</i> are susceptible to JEV infection, with a stable infection rate of around 10% at all timepoints. However, the virus was only detected in the legs of one mosquito at 21 days post-feeding, and no mosquito saliva contained JEV. Conclusions: Overall, this research shows that Swedish <i>Cx. pipiens</i> can become infected with JEV, and emphasizes the importance of further understanding of the thresholds and barriers for JEV dissemination in mosquitoes. 2024-05-13 2024-05-15T12:59:27Z 2024-05-15T12:59:27Z Journal Article https://hdl.handle.net/10568/141838 en Open Access Springer Krambrich, J., Akaberi, D., Lindahl, J.F., Lundkvist, Å. and Hesson, J.C. 2024. Vector competence of Swedish <i>Culex pipiens</i> mosquitoes for Japanese encephalitis virus. Parasites & Vectors 17: 220.
spellingShingle health
japanese encephalitis virus
vector-borne diseases
Krambrich, J.
Akaberi, D.
Lindahl, Johanna F.
Lundkvist, Å.
Hesson, J.C.
Vector competence of Swedish Culex pipiens mosquitoes for Japanese encephalitis virus
title Vector competence of Swedish Culex pipiens mosquitoes for Japanese encephalitis virus
title_full Vector competence of Swedish Culex pipiens mosquitoes for Japanese encephalitis virus
title_fullStr Vector competence of Swedish Culex pipiens mosquitoes for Japanese encephalitis virus
title_full_unstemmed Vector competence of Swedish Culex pipiens mosquitoes for Japanese encephalitis virus
title_short Vector competence of Swedish Culex pipiens mosquitoes for Japanese encephalitis virus
title_sort vector competence of swedish culex pipiens mosquitoes for japanese encephalitis virus
topic health
japanese encephalitis virus
vector-borne diseases
url https://hdl.handle.net/10568/141838
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