**2020**
* **January 2020:** The first cases of COVID-19 are reported in Wuhan, China.
* **January 23, 2020:** Wuhan is placed under lockdown, becoming the first city in the world to implement such a measure in response to the pandemic.
* **February 2020:** The Chinese government implements a nationwide lockdown, restricting travel and closing businesses.
* **March 2020:** The number of new COVID-19 cases in China begins to decline.
* **April 2020:** Wuhan’s lockdown is lifted after 76 days.
**2021**
* **January 2021:** China begins its vaccination campaign.
* **March 2021:** China reports a new wave of COVID-19 cases, leading to localized lockdowns.
* **May 2021:** China achieves its goal of vaccinating 40% of its population.
* **July 2021:** China reports a new wave of COVID-19 cases, leading to stricter lockdowns and travel restrictions.
* **August 2021:** China approves the use of two domestically developed vaccines for general use.
**2022**
* **January 2022:** China reports a new wave of COVID-19 cases, leading to further lockdowns and travel restrictions.
* **March 2022:** China’s zero-COVID policy is criticized by the World Health Organization (WHO) for being unsustainable.
* **April 2022:** Shanghai is placed under a strict lockdown, leading to widespread food shortages and other disruptions.
* **May 2022:** The Chinese government begins to ease some lockdown measures in Shanghai.
* **June 2022:** China reports a new wave of COVID-19 cases, leading to localized lockdowns.
**2023**
* **January 2023:** China abruptly ends its zero-COVID policy, lifting all lockdown measures and travel restrictions.
* **February 2023:** China experiences a surge in COVID-19 cases following the lifting of restrictions.
**Analysis**
China’s zero-COVID policy was a strict set of measures aimed at eliminating the spread of COVID-19 within the country. The policy included lockdowns, travel restrictions, mass testing, and contact tracing. While the policy was successful in preventing a large-scale outbreak of COVID-19 in China, it also had a significant impact on the country’s economy and society.
The policy was met with mixed reactions from the international community. Some countries praised China for its success in containing the virus, while others criticized the policy for being too restrictive and authoritarian. The WHO also criticized the policy, saying that it was not sustainable in the long term.
In early 2023, China abruptly ended its zero-COVID policy. This decision was likely made in response to the growing economic and social costs of the policy. The lifting of restrictions has led to a surge in COVID-19 cases in China, but it is still too early to say what the long-term impact of this decision will be..
