Earlier quoted context omitted.
I asked a Chinese friend who is studying the ongoing restrictions about this. He told me that over 80 vaccination rates in China are only c. 55 percent vs 80 percent in the over 60 category. In HK death rates from omicron were quite high due to the same reason when it had its spike some weeks ago. I too was baffled until I learned of the above.
What i don't understand is how the Chinese authorities can lock down whole cities indefinitely, but can't force a few geriatrics to have an injection.
I'd hope they are trying to push for increasing vaccination of elderly now, otherwise there will be no end to these lockdowns.