The Effective way to solve China's problems would be to vaccinate everyone with MRNA vaccines likely: But 500 million to 1 billion doses?

 Because loosening Virus controls the way China is doing it likely will result in many more Covid Deaths.

However, the problems in China are now so completely out of control on many different levels it is hard to see a useful way forward for China other than for them to buy MRNA Pfizer and Moderna Vaccines from the western World to vaccinate everyone in China. But, vaccinating 500 million to 1 billion or more people would likely be a logistical nightmare and very expensive and I'm not sure the Xi government would attempt to do this.

However, if Covid gets loose without enough people vaccinated or with enough herd immunity from exposure it could also be a nightmare for the whole world in new versions of Covid getting loose too.

So, the world might be forced to not allow people from China to visit other parts of the world if this happened too. Because the Covid problem in China is now completely out of control the way it has been handled so far.