本帖最后由 zhousht 于 2021-8-6 17:26 编辑 : V8 m( v$ Q9 O& z" `) ?9 W W
0 I( O! k: O4 p7 U2 P: eScientists 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.: P6 ]7 F% G3 g3 ^* } https://www.theguardian.com/soci ... -system-experts-say& K% N( L; w- D" W" m
Lockdown最受害的是儿童。