原标题:新冠肺炎疫情肆虐半年,“群体免疫”实现了吗? 在新冠肺炎疫情大规模暴发之初,“群体免疫”这个概念就进入了人们的视野。 3月初,英国政府首先提出通过让60%人
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Latest Covid19 Info
- Ontario New Case+2,632
- Ontario New Death+46
- Canada First doses658,662
- Canada Second doses53,629
- Canada % of population vaccinated1.87%
- Canada Received from manufacturer893,240
- Canada Received doses administered79.7%