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Updated: Feb 15, 2026
Vector Competence Analyses on Aedes aegypti Mosquitoes using Zika Virus
Published on: May 31, 2020
Antiviral Immunity and Virus-Mediated Antagonism in Disease Vector Mosquitoes
Glady Hazitha Samuel1, Zach N Adelman1, Kevin M Myles1
1Texas A & M University, Department of Entomology, Minnie Belle Heep Center, College Station, TX 77843-2475, USA.
Abstract:
More than 100 pathogens, spanning multiple virus families, broadly termed 'arthropod-borne viruses (arboviruses)' have been associated with human and/or animal diseases. These viruses persist in nature through transmission cycles that involve alternating replication in susceptible vertebrate and invertebrate hosts. Collectively, these viruses are among the greatest burdens to global health, due to their widespread prevalence, and the severe morbidity and mortality they cause in human and animal hosts. Specific examples of mosquito-borne pathogens include Zika virus (ZIKV), West Nile virus (WNV), dengue virus serotypes 1-4 (DENV 1-4), Japanese encephalitis virus (JEV), yellow fever virus (YFV), chikungunya virus (CHIKV), and Rift Valley fever virus (RVFV). Interactions between arboviruses and the immune pathways of vertebrate hosts have been extensively reviewed. In this review we focus on the antiviral immune pathways present in mosquitoes. We also discuss mechanisms by which mosquito-borne viruses may antagonize antiviral pathways in disease vectors. Finally, we elaborate on the possibility that mosquito-borne viruses may be engaged in an evolutionary arms race with their invertebrate vector hosts, and the possible implications of this for understanding the transmission of mosquito-borne viruses.
Insights
Arthropod-borne viruses (arboviruses) cause significant global health burdens. This review explores mosquito antiviral immunity and how viruses may overcome it, suggesting an evolutionary arms race between viruses and their insect vectors.
Area of Science:
- Virology
- Immunology
- Vector Biology
Background:
- Arthropod-borne viruses (arboviruses) cause widespread human and animal diseases.
- Transmission involves replication in both vertebrate and invertebrate hosts.
- Examples include Zika, dengue, and West Nile viruses.
Purpose of the Study:
- To review antiviral immune pathways in mosquitoes.
- To discuss viral antagonism of these pathways.
- To explore the evolutionary dynamics between arboviruses and mosquito vectors.
Main Methods:
- Literature review focusing on mosquito antiviral immunity.
- Analysis of viral mechanisms for immune evasion.
- Discussion of co-evolutionary perspectives.
Main Results:
- Mosquitoes possess innate antiviral immune mechanisms.
- Arboviruses have evolved strategies to antagonize mosquito immunity.
- Evidence suggests an ongoing evolutionary "arms race".
Conclusions:
- Understanding mosquito antiviral immunity is crucial for controlling arbovirus transmission.
- Viral antagonism and co-evolution shape arbovirus epidemiology.
- Further research into vector-pathogen interactions can inform public health strategies.
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