I'm not sure. It really depends on how much doing their neo-liberal reforms have gutted their state's capacity to sustain medical intervention on the public.

I think because of their rapid development the Chinese are willing and able to put up with alot more government intervention because of general good-will, and because of that the government has basically created another entire economy dedicated to the COVID prevention. Like factories making masks, and thermometers, people making vaccines and research grants, and people getting paid to stand in the streets and check people and at the front of buildings, and the IT for their tracing, etc. It has been pretty good for the Chinese economy and most of the time, people are living their normal social lives, without disease, and it appears there is a social pressure to maintain that, from within the government, and from the populace. As long as that market remains healthy, which it should unless China runs out of material to produce stuff with, they should be able to sustain it indefinitely. The question is if they have the wherewithall to not cut funding to it if the economy turns south and/or they begin to stall on growth, which idk on that one, they appear to be making mostly good choices so far and I can't read Chinese so I'm speculating after that.