What is a COVID-19 vaccine passport, and do I need one?

What is a COVID-19 vaccine passport, and do I need one? “Vaccine passports” are digital or paper documents that show you were vaccinated against COVID-19, and could help you get into a growing number of places. Europe and U.S. states like California and New York created official digital credentials that let you verify your COVID-19 immunization record and convert it into a scannable QR code you can pull up on your cellphone. Most places that require vaccination proof also accept simpler options, such as the paper card noting the dates of your shots from the U.S. Centers for Disease Control and Prevention. Denmark, Greece, France, Italy, some Canadian provinces and the U.S. cities of New Orleans, New York and San Francisco are among the places that have vaccination requirements to get into places like indoor restaurants or theaters.