本帖最后由 zhousht 于 2021-8-6 17:26 编辑 # @ t k Z: V3 n- d6 _+ _
4 f m% J0 E8 ~/ aScientists are concerned that measures to combat Covid-19 have weakened the immune systems of young children who have not been able to build up resistance to common bugs, leaving them vulnerable when mask-wearing and social distancing eventually end.; q/ q0 }) H1 s+ S$ W+ f7 q https://www.theguardian.com/soci ... -system-experts-say# o' S3 K5 l- c. [ D* x
Lockdown最受害的是儿童。