You do realize that China prevented travel out of Wuhan to other areas of China, but intentionally left open the option for people to get on an international flight to a foreign country. This was happening in November 2019 - February 2020. The virus was claimed by China at the time to be spread by contact rather than airborne.

So to recap, China setup the people who wanted to get out of Wuhan so that they traveled on long international flights to get away. China knowingly lied about the mechanism of spread that the virus employed.

Governments and health agencies around the world knowingly and unquestioningly accepted the lie as fact and proceeded to downplay the risks of spread. Democrats and Republicans controlled by the deep state in congress even coordinated the first Trump impeachment to be delivered to the Senate on the day the first hospitalization for Sars-Cov2 was recorded in the US. That was intended to distract from and delay an effective Trump response to the disease spreading in the US.

There are other notable happenings during that early spread timeframe, but I listed the few I remember off the top of my head.