Ключевые слова: antibodies, b, blood, c, care, chalkboard, clinic, clinician, concept, conceptual, contagious, d, deadly, delete, diagnose, disease, doctor, e, erase, eraser, hand, healthcare, hepatitis, hospital, ill, illness, infected, infection, infectious, inflammation, internist, isolated, liver, medical, medicare, paper, patient, pencil, physician, prescription, remove, rubber, symptoms, tests, text, treatment, type, viral, virus, word,