本帖最后由 zhousht 于 2021-8-6 17:26 编辑 : f! M' ?+ Y0 R$ E& d1 _' G% ]! L8 S$ x! q& B$ d9 A
Scientists 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. 7 m1 G# x" E' F8 @! z$ ohttps://www.theguardian.com/soci ... -system-experts-say( o, G- i6 t0 z+ D8 L( M$ v
Lockdown最受害的是儿童。