Ключевые слова: adult, afraid, age, allergy, american, arms, attitude, background, breathing, care, caucasian, confident, contagious, content, coronavirus, covid19, crossed, dental, disease, elderly, epidemic, face, flu, health, healthy, illness, infection, influenza, isolated, male, man, mask, mature, medical, medicine, old, outbreak, pandemic, pensioner, person, portrait, prevention, protection, safety, season, senior, surgical mask, virus, wearing,