Ключевые слова: adult, allergy, caucasian, closeup, concept, corona, coronavirus, covid19, danger, disease, emotional stress, epidemic, face, fear, female, health, healthy, ill, illness, infection, influenza, mask, medical, medical mask, mers, outbreak, pandemic, panic, pollution, pollution mask, portrait, prevention, protect, protection, protective, respiratory, respiratory system, safety, scare, scared, sick, symptom, virus, wearing, woman,