American Association for the Advancement of Science, Science, 6531(371), p. 823-829, 2021
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Targeting sarbecoviruses As we continue to battle the COVID-19 pandemic, we must confront the possibility of new pathogenic coronaviruses emerging in humans in the future. With this in mind, Rappazzo et al. isolated antibodies from a survivor of the 2003 severe acute respiratory syndrome coronavirus (SARS-CoV), used yeast display libraries to introduce diversity into these antibodies, and then screened for binding to SARS-CoV-2. One of the affinity-matured progeny strongly neutralized SARS-CoV-2, SARS-CoV, and two SARS-related viruses from bats. In addition, this antibody bound to the receptor-binding domains from a panel of sarbecoviruses, suggesting broader activity, and provided protection against SARS-CoV and SARS-CoV-2 in mouse models. Science , this issue p. 823