Heard Immunity隻是理論
去看肯塔基和田納西的對比,一目了然在具體實踐中,heard immunity的現實是什麽
Heard Immunity隻是理論
去看肯塔基和田納西的對比,一目了然在具體實踐中,heard immunity的現實是什麽
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意大利一個小區在兩個月內實現群體免疫,這個是事實。
-solo1-
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04/13/2020 postreply
11:45:47
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