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Viral Mutations

Viral Mutations

A mutation is a change in the sequence of bases of DNA or RNA in a genome. Some mutations occur during replication of the genome due to errors made by the polymerase enzymes that replicate DNA or RNA. Unlike DNA polymerase, RNA polymerase is prone to errors because it is not capable of “proofreading” its work. Viruses with RNA-based genomes, like HIV, therefore accrue mutations faster than viruses with DNA-based genomes. Because mutation and recombination provide the raw material...

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Updated: Jan 18, 2026

Multiplexed Isothermal Amplification Based Diagnostic Platform to Detect Zika, Chikungunya, and Dengue 1

Multiplexed Isothermal Amplification Based Diagnostic Platform to Detect Zika, Chikungunya, and Dengue 1

Published on: March 13, 2018

Chikungunya virus: Current situation and future challenges.

Teng Zhao¹, Teng Chen¹, Jie Zhang^1,2

¹State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China.

Biosafety and Health

|January 16, 2026

Summary

This summary is machine-generated.

Chikungunya virus (CHIKV) is a growing global threat, spreading to over 100 countries. This review covers CHIKV virology, epidemiology, evolution, vaccines, and vector control strategies for effective management.

Keywords:

Aedes aegypti Aedes albopictus Chikungunya virus (CHIKV)Epidemiology Vaccine

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Area of Science:

* Arbovirology and Virology
* Public Health and Epidemiology
* Vector-borne Diseases

Background:

* Chikungunya virus (CHIKV), an alphavirus, emerged in 1952 and now affects over 100 countries.
* Recent outbreaks in Réunion Island and China highlight its increasing global dissemination risk.
* Primary vectors, Aedes aegypti and Aedes albopictus, exhibit behaviors that enhance CHIKV transmission and complicate control efforts.

Purpose of the Study:

* To review current knowledge on CHIKV.
* To summarize CHIKV virology, epidemiology, and evolution.
* To provide insights into CHIKV vaccines and vector control for managing this re-emerging arboviral threat.

Main Methods:

* Comprehensive literature review of CHIKV.
* Analysis of epidemiological data and disease spread.
* Evaluation of vaccine development and vector control strategies.

Main Results:

* CHIKV has demonstrated significant global expansion, posing substantial public health risks.
* Specific vector behaviors of Aedes mosquitoes increase CHIKV transmission potential.
* Multiple vaccine candidates (live-attenuated, virus-like particle, inactivated, mRNA) are in development, with some licensed.

Conclusions:

* Effective management of CHIKV requires a multi-faceted approach.
* Continued research into CHIKV, its vectors, and novel control strategies is crucial.
* Vaccination and integrated vector management are key to mitigating the impact of this re-emerging arbovirus.