Abrupt End of Zero-COVID Policy
After nearly three years of strict pandemic controls, China abruptly dismantled its zero-COVID policy within days, removing testing requirements, quarantine mandates, and travel restrictions; the sudden reversal led to an uncontrolled Omicron wave estimated to have caused over one million deaths.
Three Years of Zero-COVID
From early 2020 until late 2022, China pursued a zero-COVID strategy of suppressing all outbreaks through mass testing, contact tracing, mandatory quarantine, and targeted lockdowns. The strategy was held up as a national success compared to Western countries' high death tolls, and Xi Jinping personally associated himself with its implementation. By 2022, however, the highly transmissible Omicron variant made elimination increasingly costly: Shanghai's two-month lockdown in spring 2022 caused enormous economic and social disruption.
The Abrupt Reversal
Following the November 2022 White Paper Protests, the government dismantled the zero-COVID system within days. On December 7, 2022, the National Health Commission announced an end to mandatory quarantine for positive cases and removal of most testing requirements. By December 26, COVID was downgraded from a Class A to Class B infectious disease, removing the legal basis for most restrictions. The change was implemented without any public communication strategy, epidemic preparedness for the expected surge, or transition plan.
The Omicron Wave
The unmanaged transition resulted in a massive Omicron wave hitting an under-vaccinated (particularly among the elderly) and immunologically naive population. Chinese authorities stopped reporting daily case figures as infections surged. Hospitals, funeral homes, and crematoriums were overwhelmed. Independent estimates based on excess mortality and epidemiological modelling suggested between 1 and 1.5 million deaths in the months following reopening — a toll the Chinese government has never officially acknowledged. The episode raised profound questions about the costs of zero-COVID, the decision to end it abruptly, and the adequacy of China's domestic vaccines.