華府與莫德納敲定協議 斥資445億訂購1億劑疫苗

<img src="https://static.rti.org.tw/assets/thumbnails/2020/07/31/25420a0112b8123541f1ea9911c59f8d.jpg" width="360" alt="美國生技公司莫德納(Moderna)。...