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Review
. 2021 May 28;13(6):1011.
doi: 10.3390/v13061011.

Animal Models for Influenza Research: Strengths and Weaknesses

Thi-Quyen Nguyen  1 , Rare Rollon  1 , Young-Ki Choi  1   2
Affiliations
Review

Animal Models for Influenza Research: Strengths and Weaknesses

Thi-Quyen Nguyen et al. Viruses. .

Abstract

Influenza remains one of the most significant public health threats due to its ability to cause high morbidity and mortality worldwide. Although understanding of influenza viruses has greatly increased in recent years, shortcomings remain. Additionally, the continuous mutation of influenza viruses through genetic reassortment and selection of variants that escape host immune responses can render current influenza vaccines ineffective at controlling seasonal epidemics and potential pandemics. Thus, there is a knowledge gap in the understanding of influenza viruses and a corresponding need to develop novel universal vaccines and therapeutic treatments. Investigation of viral pathogenesis, transmission mechanisms, and efficacy of influenza vaccine candidates requires animal models that can recapitulate the disease. Furthermore, the choice of animal model for each research question is crucial in order for researchers to acquire a better knowledge of influenza viruses. Herein, we reviewed the advantages and limitations of each animal model-including mice, ferrets, guinea pigs, swine, felines, canines, and non-human primates-for elucidating influenza viral pathogenesis and transmission and for evaluating therapeutic agents and vaccine efficacy.

Keywords: antiviral drug; ferrets; guinea pigs; influenza; mice; non-human primates; pathogenesis; transmission; vaccine efficacy.

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Conflict of interest statement

The authors declare no conflict of interest.

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