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September 10, 2025Parasites & VectorsOpen Access

Impact of temperature on vector competence of Culex pipiens molestus: implications for Usutu virus transmission in temperate regions

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Authors

NSNicola SeechurnJPJack PilgrimKSKen Sherlock

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Overview

Laboratory study assesses transmission of usutu virus in Culex pipiens at varying temperatures, suggesting thresholds for replication.

Key Points

  • Cx. pipiens molestus can transmit usutu virus at 22 ℃, showing active viral replication.
  • Mosquito body samples displayed eight-fold higher viral copy numbers at 22 ℃ compared to lower temperatures.
  • Utilizing a sensitive assay detected usutu virus RNA longer at 18 ℃ than at 20 ℃, indicating critical temperature effects.
  • Understanding temperature's role is essential for future studies on mosquito-borne viruses in temperate regions.

Cite This Study

Seechurn et al. (2025) studied this question.

synapsesocial.com/papers/68c19f7f54b1d3bfb60dab67https://doi.org/10.1186/s13071-025-06948-z
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Temperature Unlocks Inheritance: Indications of Vertical Transmission of Usutu Virus in <i>Culex pipiens</i> Bioform Molestus2026
  2. 2Transovarial transmission in field caught mosquitoes identifies a mechanism for the establishment of Usutu virus in a temperate country2024 · 2 citations
  3. 3Vector competence of Swedish Culex pipiens mosquitoes for Usutu virus2024 · 18 citations
  4. 4Virulence and transmission vary between Usutu virus lineages in Culex pipiens2024 · 6 citations
  5. 5Usutu virus promotes West Nile virus replication in Culex pipiens biotype molestus during simultaneous and sequential co-infections2026