本帖最后由 zhousht 于 2021-8-6 17:26 编辑 ( n# V2 x' J& \3 o; T% e, [5 q" C ) N- A7 r+ L8 `, LScientists 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.4 z4 ]% X8 d* D: V. j4 c( d https://www.theguardian.com/soci ... -system-experts-say7 s7 E5 |) W% e0 l: C# Z
Lockdown最受害的是儿童。