Ключевые слова: adult, app, certificate, concept, coronavirus, covid, covid19, digital, disease, document, epidemic, health, health passport, holding, identification, immune, immunity, immunity passport, immunization, international, male, man, medical, mobile, mobile app, online, pandemic, pass, passport, people, person, phone, prevention, protection, qr code, safety, screen, smart phone, smartphone, technology, tourism, tourist, travel, vaccinate, vaccinated, vaccinating, vaccination, vaccine, virus, white background,