世衛：Omicron散播快且削弱疫苗效力

未署名2021/12/13 06:16

<img src="https://static.rti.org.tw/assets/thumbnails/2021/12/05/0720088f799970042c747ead4d8e7961.jpg" width="360" alt="COVID-19變異病毒株Omicron。...