China's spiraling Delta variant outbreak hits Wuhan, as country introduces mass travel restrictions
https://edition.cnn.com/2021/08/04/china/china-delta-outbreaks-intl-hnk/index.html
When we see cases in China, we can learn that lockdown is not as effective as we expected, and there are still expansion of delta virus even after lengthy lockdown and strict border quarantine.
It is easily transmitted, because the virus is so weak that many people can be infected without noticing. It's too difficult to control by regulation about human behaviors.
We should learn that it just deprives people of liberty and human rights without solving the issue of pandemic.
