Editorials: Inactivated vaccines protection against COVID-19 symptomatic infections

Omicron variants of SARS-CoV-2 have been become the dominant variant family among more than 100 countries and regions around the world. There are still limited data on how inactivated COVID-19 vaccines prevent Omicron-related symptomatic infection, transmission, hospital admission, and death3. Recently, Dawei Yang et al. published a paper in the to explore the effect of inactivated COVID-19 vaccines on Omicron from the perspective of real-world observation data.