Canada begins mass vaccination program stocking 0 54 2020.12.15 09:26 https://youtu.be/EcoVpLjr5yY + 2 캐나다도 코로나 백신 접종 개시…의료진에 최초 투여 Canada also began its mass vaccination campaign on Monday,... as first shots of Pfizer-BioNTech's ...