Ключевые слова: adolescent, adult, allergy, avoid, bald, blow, caucasian, cold, disease, diseased, epidemic, face, father, fever, flu, gesture, gray, grippe, guy, handkerchief, hands, head, health, healthcare, holding, ill, illness, infect, infection, influenza, male, man, mature, medicine, napkin, nose, person, pointing, portrait, protect, runny, sick, sinus, sneeze, sneezing, son, studio, tissue, two, white,