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Vector competence of mosquitoes from Europe for Tahyna virus.

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Názov: Vector competence of mosquitoes from Europe for Tahyna virus.
Autori: Höller P; Bernhard Nocht Institute for Tropical Medicine, Bernhard-Nocht-Strasse 74, 20359, Hamburg, Germany. patrick.hoeller@bnitm.de., Lühken R; Bernhard Nocht Institute for Tropical Medicine, Bernhard-Nocht-Strasse 74, 20359, Hamburg, Germany., Sauer FG; Bernhard Nocht Institute for Tropical Medicine, Bernhard-Nocht-Strasse 74, 20359, Hamburg, Germany., Villacañas de Castro C; Bernhard Nocht Institute for Tropical Medicine, Bernhard-Nocht-Strasse 74, 20359, Hamburg, Germany.; Carl von Ossietzky University, Oldenburg, Germany., Becker N; Institute for Dipterology (IfD), Speyer, Germany.; Center for Organismal Studies (COS), University of Heidelberg, Heidelberg, Germany., Jöst H; Bernhard Nocht Institute for Tropical Medicine, Bernhard-Nocht-Strasse 74, 20359, Hamburg, Germany., Pfitzner WP; Kommunale Aktionsgemeinschaft zur Bekämpfung der Schnakenplage e.V, Speyer, Germany., Schmidt-Chanasit J; Bernhard Nocht Institute for Tropical Medicine, Bernhard-Nocht-Strasse 74, 20359, Hamburg, Germany.; Faculty of Mathematics, Informatics and Natural Sciences, University of Hamburg, Hamburg, Germany., Heitmann A; Bernhard Nocht Institute for Tropical Medicine, Bernhard-Nocht-Strasse 74, 20359, Hamburg, Germany., Jansen S; Bernhard Nocht Institute for Tropical Medicine, Bernhard-Nocht-Strasse 74, 20359, Hamburg, Germany.; Faculty of Mathematics, Informatics and Natural Sciences, University of Hamburg, Hamburg, Germany.
Zdroj: Scientific reports [Sci Rep] 2025 Jul 11; Vol. 15 (1), pp. 25092. Date of Electronic Publication: 2025 Jul 11.
Spôsob vydávania: Journal Article
Jazyk: English
Informácie o časopise: Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: MEDLINE
Imprint Name(s): Original Publication: London : Nature Publishing Group, copyright 2011-
Výrazy zo slovníka MeSH: Mosquito Vectors*/virology , Aedes*/virology , Encephalitis Virus, California*, Animals ; Europe
Abstrakt: Competing Interests: Declarations. Competing interests: The authors declare no competing interests.
Tahyna virus (TAHV) was the first mosquito-borne virus isolated in Europe, and has since been found throughout Eurasia and Africa. Infections are mostly asymptomatic but can cause "Valtice fever", characterized by influenza-like symptoms, mainly in children, with severe cases occasionally causing neurological symptoms. The virus is maintained in an enzootic cycle between small mammals and mosquitoes. Recent and comprehensive studies of vector competence for TAHV are scarce. To fill this gap, and to better understand the transmission cycle of TAHV, we studied ten taxa (Ae. aegypti, Ae. albopictus, Ae. japonicus japonicus, Ae. koreicus, Ae. rusticus, Cx. pipiens biotype pipiens, Cx. torrentium, Cs. morsitans/fumipennis, An. daciae, and An. stephensi) by orally infecting them with TAHV. All taxa were susceptible to TAHV infection. Additionally, the invasive species Ae. albopictus, and Ae. rusticus, a species native to Europe, were able to transmit the virus at 27 ± 5 °C, with transmission efficiencies of 3.3% and 14.3%, respectively. Therefore, it is plausible for TAHV to be transmitted by Ae. albopictus and Ae. rusticus in natural settings in Europe. At a lower temperature of 24 ± 5 °C, infection and transmission decreased in Ae. albopictus. This data will allow future risk models and early warning systems to better predict TAHV transmission.
(© 2025. The Author(s).)
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Contributed Indexing: Keywords: Aedes albopictus; Aedes rusticus; Tahyna virus; Vector competence
Entry Date(s): Date Created: 20250711 Date Completed: 20250711 Latest Revision: 20250714
Update Code: 20250715
PubMed Central ID: PMC12254378
DOI: 10.1038/s41598-025-10883-5
PMID: 40646163
Databáza: MEDLINE
Popis
Abstrakt:Competing Interests: Declarations. Competing interests: The authors declare no competing interests.<br />Tahyna virus (TAHV) was the first mosquito-borne virus isolated in Europe, and has since been found throughout Eurasia and Africa. Infections are mostly asymptomatic but can cause "Valtice fever", characterized by influenza-like symptoms, mainly in children, with severe cases occasionally causing neurological symptoms. The virus is maintained in an enzootic cycle between small mammals and mosquitoes. Recent and comprehensive studies of vector competence for TAHV are scarce. To fill this gap, and to better understand the transmission cycle of TAHV, we studied ten taxa (Ae. aegypti, Ae. albopictus, Ae. japonicus japonicus, Ae. koreicus, Ae. rusticus, Cx. pipiens biotype pipiens, Cx. torrentium, Cs. morsitans/fumipennis, An. daciae, and An. stephensi) by orally infecting them with TAHV. All taxa were susceptible to TAHV infection. Additionally, the invasive species Ae. albopictus, and Ae. rusticus, a species native to Europe, were able to transmit the virus at 27 ± 5 °C, with transmission efficiencies of 3.3% and 14.3%, respectively. Therefore, it is plausible for TAHV to be transmitted by Ae. albopictus and Ae. rusticus in natural settings in Europe. At a lower temperature of 24 ± 5 °C, infection and transmission decreased in Ae. albopictus. This data will allow future risk models and early warning systems to better predict TAHV transmission.<br /> (© 2025. The Author(s).)
ISSN:2045-2322
DOI:10.1038/s41598-025-10883-5