Figure 5.

Lifecycles of SARS-CoV-1, Wuhan-Hu-1 Strain and the Omicron Variant. The schematic diagram summarizes implications arising from the SDMs. The higher PID_N allows greater production of viral particles in the lungs, but the softer outer shell (lower PID_M) causes less viral shedding in the oral–nasal region when compared to SARS-CoV-2. (Taken in part from Biomolecules. 2022;12(5). © 2022 Goh et al, Published by MDPI AG, Open access under CC BY-NC-ND license. This is an Open Access article which permits unrestricted non-commercial use, provided the original work is properly cited. [21]).