Ключевые слова: adult, background, bronchial, bronchitis, care, catch, caucasian, chronic, cold, color, contagious, cough, coughing, disease, epidemic, female, fever, flu, girl, health, ill, infection, influenza, lungs, medical, medicine, pandemic, people, person, pneumonia, portrait, problem, red, respiratory, season, sickness, sneezing, sore, symptom, temperature, throat, unhealthy, virus, woman, young,