Ключевые слова: adult, allergen, allergic, allergy, ambrosia, antihistamine, blossom, blowing, caucasian, cold, disease, elderly, flower, flu, handkerchief, health care, illness, immunity, infection, influenza, leaves, male, man, mature, medical, medicine, napkin, nature, nose, old, outdoor, people, pollen, portrait, problem, reaction, respiratory, rhinitis, season, senior, sensitivity, sick, sickness, sneezing, spring, symptom, tissue, tree, virus,