本帖最后由 zhousht 于 2021-8-6 17:26 编辑 ; \5 H2 j( b }, `% g
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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. ! U5 {" v: l. U; rhttps://www.theguardian.com/soci ... -system-experts-say4 F1 X$ ?0 M u6 M: Q8 V, Y
Lockdown最受害的是儿童。