• Single dose vaccine, no special cold-storage requirmnts • Single dose 72% effective in US, 66% effective across all sites at preventing moderate to severe COVID-19 at 28D post-vaccination • 85% effective across sites in preventing severe disease • 100% efficacy preventing hospitalization & death • Single dose & no cold storage requirements allow for wider distribution across settings • More rapid vaccination of large groups offers communities important protection •预计FDA评论2月26日