本帖最后由 zhousht 于 2021-8-6 17:26 编辑 3 v! Q( ^7 d1 q# ? ! c5 q# L! V) v% ?. P( \+ Z3 [0 zScientists 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.: M, i& b1 n F6 L: G/ }3 q( V( ^ https://www.theguardian.com/soci ... -system-experts-say" v: S! S$ i- e$ @5 G7 Z1 j
Lockdown最受害的是儿童。