Unless they reached herd immunity last year.
A quick browse and I can’t find any major country that has flatlined.
(Maybe I am reading this all wrong)
I used the numbers from Google.
Search term = ‘China Covid cases’
And took them from the drop-down list.
China (Mainland)
Cases: 94,472
Recovered: 87,908
Deaths: 4,636
United States
Cases: 37M
+252K
Recovered: 623K
Deaths: +1,016