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Updated: Jul 8, 2026
10:35
Vector Competence Analyses on Aedes aegypti Mosquitoes using Zika Virus
Published on: May 31, 2020
The Chikungunya threat: an ecological and evolutionary perspective
Christine Chevillon1, Laurence Briant, François Renaud
1Génétique et Evolution des Maladies Infectieuses (UMR CNRS-IRD 2724), Centre IRD, 911 Avenue Agropolis, BP 64501 F-34095 Montpellier CEDEX 5, France. christine.chevillon@mpl.ird.fr
Trends in Microbiology
|January 15, 2008
Summary
Chikungunya virus (CHIKV), an emerging alphavirus, causes urban outbreaks transmitted by mosquitoes. Its re-emergence is linked to long-distance migrations and evolutionary differences from Dengue viruses.
Area of Science:
- Virology
- Epidemiology
- Evolutionary Biology
Background:
- Chikungunya virus (CHIKV) is an emerging mosquito-borne alphavirus primarily of African origin.
- CHIKV causes significant non-African urban outbreaks, sharing vectors with Dengue viruses.
- Its re-emergence pattern is influenced by long-distance migrations and African zoonotic sources.
Purpose of the Study:
- To review current information on CHIKV genetics, ecology, and human infection.
- To compare evolutionary patterns of Alphaviruses (CHIKV) and Flaviviruses (Dengue).
- To identify factors influencing CHIKV's potential for future re-emergence.
Main Methods:
- Literature review of CHIKV genetics, ecology, and epidemiology.
- Comparative analysis of evolutionary constraints and adaptive changes between Alphaviruses and Flaviviruses.
- Discussion of factors contributing to CHIKV re-emergence.
Main Results:
- CHIKV exhibits a re-emergence pattern tied to migration and African zoonotic sources.
- Genus-based evolutionary differences exist between Alphaviruses and Flaviviruses.
- Understanding CHIKV ecology and evolutionary dynamics is crucial.
Conclusions:
- Further research into African CHIKV ecology is needed.
- Investigating evolutionary differences between Flavivirus and Alphavirus members can clarify CHIKV's re-emergence potential.
- Long-distance migrations and evolutionary factors significantly impact CHIKV's global spread.
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