本帖最后由 zhousht 于 2021-8-6 17:26 编辑 0 X0 d3 ]1 T0 B z8 Y, @1 C1 y; h: h, K+ a5 S- _1 z
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., Y C1 e0 e% U! B$ _7 W https://www.theguardian.com/soci ... -system-experts-say- j% t ?' I) Y7 }7 k( z4 {
Lockdown最受害的是儿童。