Ключевые слова: adult, african american, allergic, allergy, asian, bad, blowing, cleaning, cold, cough, disease, diverse, fever, flower dust, flu, garden, hand, handkerchief, hay fever, health, hispanic, ill, illness, infection, influenza, lifestyle, male, man, napkin, nature, nose, outdoors, pain, park, person, pollen, respiration, rhinitis, season, sick, sneeze, sneezing, snort, spring, summer, symptom, tissue, unhealthy, unwell, virus,