風傳媒變種病毒空氣傳播如何防？專家建議口罩這樣戴：防護效果接近N95
未署名
<![CDATA[<img src="https://image.cache.storm.mg/styles/smg-150x150-fp/s3/media/image/2020/02/03/20200203-123553_U13721_M589263_b595.jpg?itok=CqPYyi9r"...
<![CDATA[<img src="https://image.cache.storm.mg/styles/smg-150x150-fp/s3/media/image/2020/02/03/20200203-123553_U13721_M589263_b595.jpg?itok=CqPYyi9r"...