本帖最后由 zhousht 于 2021-8-6 17:26 编辑 0 x, [7 m; y8 {% ~/ o$ U2 e8 L
$ q( {& P& }3 SScientists 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. * p+ @6 ~0 G+ I7 A* U6 o9 J# @https://www.theguardian.com/soci ... -system-experts-say& G, F5 D1 Y% n
Lockdown最受害的是儿童。