What scattered vaccination records mean for Covid-19 immunity 'passports'
CNN
As more than 100 million Americans have received Covid-19 vaccines, experts are calling on the federal government to set standards for vaccination "passports" that may serve as proof.
Last month, New York became the first state to roll out such a tool — known as the "Excelsior Pass" — which may be used to grant people access to events like sports and concerts.More Related News