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- Transmissibility and pathogenicity of SARS-CoV-2 variants in animal models
- Young-Il Kim , Mark Anthony B. Casel , Young Ki Choi
- J. Microbiol. 2022;60(3):255-267. Published online March 2, 2022
- DOI: https://doi.org/10.1007/s12275-022-2033-z
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- 11 Web of Science
- 9 Crossref
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Abstract
- As of February 2022, SARS-CoV-2 is still one of the most serious public health threats due to its high mortality rate and rapid spread of novel variants. Since the first outbreak in 2019, general understanding of SARS-CoV-2 has been improved through basic and clinical studies; however, knowledge gaps still exist in our understanding of the emerging novel SARSCoV- 2 variants, which impacts the corresponding development of vaccines and therapeutics. Especially, accumulation of mutations in SARS-CoV-2 and rapid spread in populations with previous immunity has resulted in selection of variants that evade the host immune response. This phenomenon threatens to render current SARS-CoV-2 vaccines ineffective for controlling the pandemic. Proper animal models are essential for detailed investigations into the viral etiology, transmission and pathogenesis mechanisms, as well as evaluation of the efficacy of vaccine candidates against recent SARS-CoV-2 variants. Further, the choice of animal model for each research topic is important for researchers to gain better knowledge of recent SARS-CoV-2 variants. Here, we review the advantages and limitations of each animal model, including mice, hamsters, ferrets, and non-human primates, to elucidate variant SARS-CoV-2 etiology and transmission and to evaluate therapeutic and vaccine efficacy.
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Citations
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Journal of Microbiology.2022; 60(3): 235. CrossRef - SARS CoV-2 (Delta Variant) Infection Kinetics and Immunopathogenesis in Domestic Cats
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Viruses.2022; 14(6): 1207. CrossRef
- In vivo characterization of ACE2 expression in Sprague-Dawley rats and cultured primary brain pericytes highlights the utility of Rattus norvegicus in the study of COVID-19 brain pathophysiology
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