New data show that leading covid-19 vaccines have similarly high efficacy Posted on March 5, 2021March 5, 2021 by Mary Pat Campbell Link: https://www.economist.com/graphic-detail/2021/03/06/new-data-show-that-leading-covid-19-vaccines-have-similarly-high-efficacy Graphic: Publication Date: 6 March 2021 Publication Site: The Economist