Ключевые слова: adult, allergic, allergy, bacteria, bacterium, bed, blanket, care, caucasian, cold, contagious disease, coronavirus, covid19, disease, epidemic, fever, flu, grippe, handkerchief, health, heating rhinitis, home, human, ill, illness, immunity, indoors, infection, influenza, light background, male, man, medical, medicine, napkin, napkin tissue, nose, person, prevention, protect, protection, room, sick, sickness, sitting, sneeze, symptom, treatment, unwell, virus,