本帖最后由 zhousht 于 2021-8-6 17:26 编辑 3 }$ y7 ^! N$ Z2 K/ ~3 y* I9 }0 T3 S$ l/ C5 X
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. , O* w0 w) Q9 i k! Z3 ~https://www.theguardian.com/soci ... -system-experts-say b9 l# }3 h; L1 A
Lockdown最受害的是儿童。