China could have bought vaccines from other makers. Sinopharm wasn't very effective to begin with ( https://www.who.int/news-room/feature-stories/detail/the-si

China could have bought vaccines from other makers. Sinopharm wasn't very effective to begin with ( https://www.who.int/news-room/feature-stories/detail/the-sinopharm-covid-19-vaccine-what-you-need-to-know https://www.who.int/news-room/feature-stories/detail/the-sin... has it at 79% compared to the Pfizer and Moderna vaccines starting out in the mid 90% range). ... and then you get a visitor to Shanghai Disney testing positive and https://youtu.be/yioG7mK01U0 https://youtu.be/yioG7mK01U0 Realizing that I am delving into speculation, this sounds more like the refinement of establishing a police state where one can use "someone you came in contact with tested positive for Covid" and shutting down large segments of a city and sending people to government quarantine camps than a desire for political stability.