the fact that China wanted to proceed/apply a Zero Covid policy meant the virus didn't circulate between their population thus very restricted quantity of variants and also they didn't detected many infections, now they let/allow the population to circulate within China the quantity of infections is skyrocketing within China, now let's just imagine what it would happen to the outside China world when they start to travel internationally, the infections will jump back to the beginning of the epidemic end of 2019 and we all be at risk unless China decides to start using Western made vaccines, which so far, they keep declining, to day at lunch time there was well known doctor explaining that the Chinese vaccines are non performing or not as good as Western ones, he got Chinese vaccines provided by government of Mongolia, tested and compare them to the Astra Zeneca and said the results are clear and not advising anybody to use the Sinovac or Sinopharm vaccines or any other vaccines from China