https://blog.wongcw.com/2021/05/13/%e8%ae%8a%e7%95%b0%e6%af%92%e6%a0%aab-1-617%e5%b7%b2%e5%82%b3%e8%87%b340%e5%a4%9a%e5%9c%8b%e5%92%8c%e5%9c%b0%e5%8d%80%ef%bc%9a%e5%82%b3%e6%9f%93%e6%80%a7%e6%9b%b4%e5%bc%b7%e3%80%81%e5%b0%8d%e7%96%ab/
變異毒株B.1.617已傳至40多國和地區:傳染性更強、對疫苗影響或有限