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許樹昌指社區需更高群體免疫接種率 籲市民盡快接種疫苗
Local
publish： 2021-08-06 18:00
By： 無綫新聞
政府專家顧問、中大呼吸系統科講座教授許樹昌指， 隨著Delta變種病毒出現，社區要有更高群體免疫接種率，呼籲市民盡快接種疫苗。
中大呼吸系統科講座教授許樹昌表示：「以往新冠病毒初出現，一人可以傳染兩至三人，所以當時計算，如果社區有六成至七成人士接種疫苗就有足夠免疫屏障，但現在隨著Delta變種病毒出現，一人可以傳染六人，所以現在美國傳染病學會建議將目標提升至八至九成人口。七成是最基本要求，希望在九月尾前達到。」
中大呼吸系統科講座教授許樹昌表示：「以往新冠病毒初出現，一人可以傳染兩至三人，所以當時計算，如果社區有六成至七成人士接種疫苗就有足夠免疫屏障，但現在隨著Delta變種病毒出現，一人可以傳染六人，所以現在美國傳染病學會建議將目標提升至八至九成人口。七成是最基本要求，希望在九月尾前達到。」
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