J&J Says Its One-Shot Covid Vaccine Is 72% Effective In The U.S., But Less Potent In Other Regions by The Options Insider | Jan 29, 2021 | News Feed https://www.cnbc.com/2021/01/29/covid-vaccine-jjs-one-shot-drug-is-72percent-in-the-us-but-less-effective-elsewhere.html
