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港大研究:新冠病毒在 口罩 上可活7天

港大醫學院公共衛生學院近日研究,新冠肺炎病毒在環境中可存活的時間,而當中發現在外科 口罩 外層可存活長達7日,負責研究的港大醫學院公共衛生學院教授潘烈文,則建議市民盡量不要重用口罩。


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