Ключевые слова: ache, adult, allergen, allergic, allergy, attack, background, bad, care, caucasian, close, disease, face, fever, flu, get, grey, health, ill, illness, indoor, infection, lifestyle, male, man, medical, medication, medicine, nasal, nose, nostril, person, pollen, problem, relief, respiration, respiratory, runny, sick, sneeze, spray, squirt, stand, suffer, symptom, treatment, unwell, view, virus,