風傳媒Omicron新型亞變種傳染力更強！免疫逃脫能力強的BA.4、BA.5肆虐美國，專家憂心恐成主流變異株
未署名
<![CDATA[<img src="https://image.cache.storm.mg/styles/smg-150x150-fp/s3/media/image/2022/04/21/20220421-125348_U1085_M758782_8588.jpg?itok=Y6sDzett">...
<![CDATA[<img src="https://image.cache.storm.mg/styles/smg-150x150-fp/s3/media/image/2022/04/21/20220421-125348_U1085_M758782_8588.jpg?itok=Y6sDzett">...