新冠肺炎:戴外科口罩可減新冠肺炎感染率逾40% 袁國勇:應堅持佩戴 在 5月 17, 2020 取得連結 Facebook X Pinterest 電子郵件 其他應用程式 袁國勇公布研究結果。(李華輝攝)新冠肺炎疫情下人人均戴口罩自保,香港大學微生物學系講座教授袁國勇今(16日)公布研究,證實佩戴外科口罩能有效令新冠病毒 ...Video Player is loading.Play VideoPlayMuteCurrent Time 0:00/Duration 0:00Loaded: 0%0:00Progress: 0%Stream Type LIVERemaining Time -0:00 Playback Rate1xChaptersChaptersDescriptionsdescriptions off, selectedCaptionscaptions settings, opens captions settings dialogcaptions off, selectedAudio TrackFullscreenThis is a modal window.Beginning of dialog window. Escape will cancel and close the window.TextColorWhiteBlackRedGreenBlueYellowMagentaCyanTransparencyOpaqueSemi-TransparentBackgroundColorBlackWhiteRedGreenBlueYellowMagentaCyanTransparencyOpaqueSemi-TransparentTransparentWindowColorBlackWhiteRedGreenBlueYellowMagentaCyanTransparencyTransparentSemi-TransparentOpaqueFont Size50%75%100%125%150%175%200%300%400%Text Edge StyleNoneRaisedDepressedUniformDropshadowFont FamilyProportional Sans-SerifMonospace Sans-SerifProportional SerifMonospace SerifCasualScriptSmall CapsReset restore all settings to the default valuesDoneClose Modal DialogEnd of dialog window.來源 source: http://hk.on.cc