Ключевые слова: 19, access, alert, algorithm, artificial, biometric, canceled travel, canceled vacation, computers, concept, covid, display, epidemic, face, features, future, global pandemic, human, identification, identify, identity, infected, infection, laser, mask, medical, modern, networks, optical, order, outbreak, pandemic, person, pneumonia, polygon, protection, quarantine, recognition, scanner, science, sign, street, system, travel,