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The world is experiencing an unprecedented coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). SARS-CoV-2 spike protein-based vaccines are currently the main preventive agent to fight against the virus. However, several variants with extensive mutations in SARS-CoV-2 spike proteins have emerged. Some of these variants exhibited increased replication, higher transmission and virulence, and were partially resistant to antibodydoi:10.21203/rs.3.rs-388285/v1 fatcat:psp3wgkhmfgezeqleahdka7ru4