Introduction
Edited by: Mrinmoy Sanyal, Stanford University, United StatesReviewed by: Lei Li, Oracle, Australia; Larry Ellingsworth, Novavax, Inc., United States†These authors have contributed equally to this workThe SARS-CoV-2 Omicron variant has become the dominant SARS-CoV-2 variant and exhibits immune escape to current COVID-19 vaccines, the further boosting strategies are required.