疫情仍未結束 美疾管中心籲民眾集會戴口罩

<img src="https://static.rti.org.tw/assets/thumbnails/2020/04/23/4a493e07d788228cbd9607c9305de6e2.jpg" width="360" alt="美國CDC主任芮斐德(Robert Redfield) (A...