本帖最后由 zhousht 于 2021-8-6 17:26 编辑 3 g2 w; b4 J* }+ V- n9 w0 @3 ]4 r# w5 l, d% P; u2 ]% C6 F
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.8 r* i" Z& f. Z+ ]8 ]! M https://www.theguardian.com/soci ... -system-experts-say9 k/ H- Y u, d0 E" k# P9 O
Lockdown最受害的是儿童。