China’s post-zero-COVID Omicron wave: A Bayesian analysis

Proceedings of the National Academy of Sciences, Volume 122, Number 48, December 2025.
ImportanceChina’s exit from its “dynamic zero COVID” policy at the end of 2022 triggered a major Omicron wave. Our analysis of national surveillance data suggests that approximately 88% of the population was infected as of mid-February 2023. Following the policy…