本帖最后由 zhousht 于 2021-8-6 17:26 编辑 3 i' m1 B! U* @. }' m 6 |, K2 o; x% z! [5 CScientists 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. # k' D) T8 p. jhttps://www.theguardian.com/soci ... -system-experts-say3 i% `' i7 Z1 x) A
Lockdown最受害的是儿童。