Pathogenicity, immunogenicity, and protective ability of an attenuated SARS-CoV-2 variant with a deletion at the S1/S2 junction of the spike protein
P. Wang, S.-Y. Lau, S. Deng…·H. Chen
This study characterizes an attenuated SARS-CoV-2 variant with a deletion at the S1/S2 junction, showing reduced pathogenicity and immunogenicity but strong protective immunity.