Dr. Scott Gottlieb, former Food and Drug Administration commissioner, said Delta will likely become the dominant strain in the U.S., and could "spike a new epidemic heading into fall," during an interview with CBS' "Face the Nation" Sunday. 看来这该死的delta有可能在北美一入秋就卷土重来。
安省新增370例阳性率1.3%,或加快重启