Ключевые слова: adult, adults only, alert, asian, asian and indian ethnicities, asian ethnicity, bacteria, care, casual clothing, china, city, city life, confidence, coronavirus, culture, danger, day, disease, east asian ethnicity, epidemic, face, flu, flu virus, front view, head and shoulders, headshot, health, health care, illness, infection, lifestyles, man, mask, medical mask, men, outdoors, people, pollution mask, portrait, protection, safety, sick, sickness, street, surgical mask, urban, virus, young, young adult,