Ключевые слова: 1, adult, allergy, background, bed, bedchamber, blowing, business, cold, computer, concept, cough, deadline, disease, epidemic, fever, flu, handkerchief, health, home office, ill, indoor, infection, job, laptop, male, man, medicine, nose, office, pain, people, runny, sick, sinus, sitting, sneeze, space, student, symptom, temperature, unhealthy, unwell, virus, work, young,