本帖最后由 zhousht 于 2021-8-6 17:26 编辑 . G: z: D7 |6 k- t* ?+ H' _" c7 v& O( \, \4 p
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.2 u* | H* I# ~7 J* V7 W3 v% ^1 M: i7 e https://www.theguardian.com/soci ... -system-experts-say/ n% X9 K# b$ _( \& g9 Q
Lockdown最受害的是儿童。