本帖最后由 zhousht 于 2021-8-6 17:26 编辑 8 @4 N8 t9 o. C! T' c. e1 R ; D$ Y% c( |* H0 h* @, bScientists 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. ; i8 B" E% |/ [4 g6 nhttps://www.theguardian.com/soci ... -system-experts-say+ v3 E8 h$ v9 M
Lockdown最受害的是儿童。