Spike Protein-independent Attenuation of SARS-CoV-2 Omicron Variant in Laboratory Mice
S. Liu, P. Selvaraj, K. Sangare, B. Luan, T. T. Wang
This study shows that the Omicron variant of SARS-CoV-2 causes milder disease and lower viral load in mice, likely due to mutations outside the spike protein that block post-entry processes.
bioRxiv · Feb 8, 2022Microbiology