Earlier quoted context omitted.
China has a 87% COVID vaccination rate, which is higher than the US (79%). However, the Chinese-made vaccines are not very effective, and many of the unvaccinated are elderly. https://www.statista.com/statistics/1279024/china-coronaviru... vaccination-rate/
It's really bad, only 65% of 80+ are vaccinated [1] As you mentioned their own vaccine is not very effective but they have also approved no foreign vaccines yet [2] They have far too few ICU beds to manage the surge if restrictions are dropped to, say, average EU levels [3] They seem to be trapped [1] https://www.chinadaily.com.cn/a/202211/22/WS637c2416a3104917... [2] https://www.washingtonpost.com/world/2022/11/25/c…
There are three reasons they probably don't do this:
1) Their vaccines don't provide high enough protection to prevent overwhelming the healthcare system.
2) They have fostered mRNA conspiracy theories and pushing an mRNA vaccine would be a huge embarrassment to the communist party.
3) Beating the US by a wide margin on Covid deaths is a point of pride.