辉瑞据报为老年人打第四针新冠疫苗寻求授权Voice of AmericaWednesday, March 16, 2022 09:57:19 AM UTC据一位知情人士透露,制药商辉瑞预计将在本周申请获得授权,为老年人提供额外的新冠疫苗加强剂。Read full story on Voice of AmericaShare this story on:-