Despite the restrictions that have still created significant economic losses, China has not been able to predict the very rapid increase in Covid cases in recent weeks. The main reason probably lies in a relaxation of the restrictions (there have been no lockdowns for some time, for example) which resulted in an import of positive cases.
However, I think that the strategy adopted in China to completely close a region, a city or a district for two to three weeks waiting to return to zero contagions, has a lower impact on the economy than for example in Europe, with measures intermediate that last for months.
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