Ключевые слова: app, barcode, business, businessperson, career, cellphone, certificate, corporate, covid, digital, employee, fingers, hand, health, healthcare, healthy, indoors, inside, internet, job, looking, medical, mobile, office, online, passport, person, phone, professional, protection, qr, qr code, registration, safety, screen, security, smart, staff, standing, tech, technology, vaccination, vaccine, virus, web, wireless, work, worker, working, workplace,