green, pass, airport, allowed to travel, app, application, beach, certificate, certification, concept, coronavirus, covid-19, digital, digital green pass, document, epidemic, european union, green pass, health care, health passport, holiday, identification, immune, immunity, immunity passport, immunization, medical, mobile, pandemic, passport, phone, prevention, sanitary pass, security, smartphone, suitcase, technology, tourism, travel, travel restrictions, traveler, trip, vacation, vaccinated, vaccination, vaccine, vaccine passport
