本帖最后由 zhousht 于 2021-8-6 17:26 编辑 3 `2 |" V& Q2 B" q0 i3 z" ~
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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. 9 r9 a/ O$ F& D P s/ chttps://www.theguardian.com/soci ... -system-experts-say7 w0 ] R* g: ?: ]4 x/ v! y( r
Lockdown最受害的是儿童。