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Mouse Adapted SARS-CoV-2 protects animals from lethal SARS-CoV challenge. | LitMetric

AI Article Synopsis

Article Abstract

The emergence of SARS-CoV-2 has resulted in a worldwide pandemic causing significant damage to public health and the economy. Efforts to understand the mechanisms of COVID-19 disease have been hampered by the lack of robust mouse models. To overcome this barrier, we utilized a reverse genetic system to generate a mouse-adapted strain of SARS-CoV-2. Incorporating key mutations found in SARSCoV-2 variants, this model recapitulates critical elements of human infection including viral replication in the lung, immune cell infiltration, and significant disease. Importantly, mouse-adaptation of SARS-CoV-2 does not impair replication in human airway cells and maintains antigenicity similar to human SARS-CoV-2 strains. Utilizing this model, we demonstrate that SARS-CoV-2 infected mice are protected from lethal challenge with the original SARS-CoV, suggesting immunity from heterologous CoV strains. Together, the results highlight the utility of this mouse model for further study of SARS-CoV-2 infection and disease.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8109199PMC
http://dx.doi.org/10.1101/2021.05.03.442357DOI Listing

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