BTW, if 50% of population are tested

來源: -worldance- 於 2020-07-15 15:03:36 [] [舊帖] [給我悄悄話] 本文已被閱讀： 次 (135 bytes)

antibodies positive, i think we can open our cities, but we still need to protect our sicker, weaker, and older populations.

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