Americans have few options to prove they're fully vaccinated

Outside of a handful of states that have poured resources into piloting so-called "vaccine passport" type systems, most Americans still have few options to prove whether they are fully vaccinated against COVID-19.

If you got your COVID-19 vaccine from providers like Los Angeles County or Walmart, you can download a record of your doses to your phone. But except in states like New York, which began piloting its "Excelsior Pass" in March, most states cannot easily provide smartphones with proof of your doses of Pfizer, Moderna, or Johnson & Johnson.  "I know there are several states that are implementing something like this now, that will leverage their registry. But broad scale adoption? I don't think it's feasible in the near future, meaning at least in the next calendar year," says Rebecca Coyle, executive director of the American Immunization Registry Association.