Yes, that's also a factor that would make them lose face. Not only do they have ideological incentives to stick with zero-COVID policy and their own domestic va

Yes, that's also a factor that would make them lose face. Not only do they have ideological incentives to stick with zero-COVID policy and their own domestic vaccines, but as long as they can avoid an uncontrolled nationwide outbreak then the resulting need to restrict contact with the rest of the World is a further incentive to do so.