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SARS-CoV-2 and Arthropods: A Review
Stephen Higgs1,2, Yan-Jang S Huang1,2, Susan M Hettenbach1,2
1Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA.
Viruses
|May 28, 2022
Summary
Arthropod-borne transmission of SARS-CoV-2 is unlikely. This review of laboratory and field studies found no significant evidence supporting the role of arthropods in spreading the virus that causes COVID-19.
Area of Science:
- Virology
- Epidemiology
- Entomology
Background:
- The COVID-19 pandemic, caused by SARS-CoV-2, highlighted global vulnerabilities to emerging viruses.
- Unsubstantiated claims regarding SARS-CoV-2 transmission by arthropod vectors circulated without scientific evidence.
Purpose of the Study:
- To critically evaluate the potential for biological or mechanical transmission of SARS-CoV-2 by arthropods.
- To synthesize existing research on arthropod-virus interactions relevant to SARS-CoV-2.
Main Methods:
- Comprehensive review of laboratory-based research.
- Analysis of field studies investigating arthropod-virus interactions.
- Evaluation of environmental studies assessing virus survival and vector competence.
Main Results:
- No experimental evidence supports SARS-CoV-2 transmission by arthropods.
- Studies indicate a low likelihood of biological or mechanical transmission by vectors.
- Existing data does not implicate arthropods in significant epidemiological spread.
Conclusions:
- Arthropod-borne transmission of SARS-CoV-2 is highly improbable.
- Current scientific evidence does not support a significant role for arthropods in the COVID-19 pandemic's epidemiology.
- Further research should focus on established transmission routes.
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