Ключевые слова: ache, age, allergy, asthma, bronchitis, business, care, caucasian, cough, coughing, dad, diagnosis, disease, emphysema, face, father, fever, flu, health, hoary, ill, illness, influenza, male, man, mature, medical, medicine, middle, pain, pandemic, patient, person, pneumonia, problem, respiratory, sad, senior, sick, sickness, son, symptom, text, throat, treatment, unhealthy, unwell, virus, young,