本帖最后由 zhousht 于 2021-8-6 17:26 编辑 ! a. W; e" F l, b ], ^ Y% G8 H [# g3 Z2 G! K7 w* v
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.9 K& I$ }9 j# N$ p* N https://www.theguardian.com/soci ... -system-experts-say1 w' x- F0 w. w4 M1 ?& t
Lockdown最受害的是儿童。