As the West’s first authorized Covid-19 shots were administered in the U.K., an old ethical question in public health is gaining new relevance: Is there a case for issuing proof of immunity to people who have been inoculated?
— Read on www.wsj.com/articles/covid-19-vaccine-passports-could-help-life-return-to-normal-but-experts-urge-caution-11607425135
