Detection of West Nile Virus, Usutu Virus and Insect-Specific Bunyaviruses in Culex spp. Mosquitoes, Greece, 2024
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View abstract on PubMed
Summary
This summary is machine-generated.West Nile virus (WNV) was detected in Greek mosquitoes in 2024, with infection rates varying by region and month. Genetic analysis revealed WNV strains belong to the Europe WNV-2A sub-lineage.
Area Of Science
- Veterinary Entomology
- Medical Entomology
- Molecular Virology
Background
- Greece is highly impacted by West Nile virus (WNV), experiencing annual outbreaks since a major 2010 event.
- Mosquito surveillance is crucial for monitoring WNV circulation and predicting potential human risk.
Purpose Of The Study
- To conduct molecular detection of WNV in 45,988 mosquitoes in Greece during 2024.
- To genetically characterize detected WNV strains and assess infection rates across regions.
Main Methods
- Molecular detection of WNV in <i>Culex pipiens</i> s.l. mosquito pools using next-generation sequencing.
- Genetic characterization of WNV, Usutu virus (USUV), and bunya-like viruses.
Main Results
- WNV detected in 3.12% of mosquito pools, with strains belonging to Europe WNV-2A sub-lineage.
- Highest WNV infection rates observed in Thessaly and Central Macedonia, particularly in July and September.
- Usutu virus and bunya-like viruses were also detected, providing insights into viral diversity.
Conclusions
- Prompt detection of WNV and other viruses in mosquitoes aids in designing effective control strategies.
- The study highlights regional and temporal variations in WNV prevalence in Greece.
- Findings contribute to understanding viral diversity and evolution within mosquito populations.
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