Ключевые слова: 3d, asia, bacteria, bacterium, biology, brazil, cancer, cell, china, death, diagnosis, diagnostic, disease, flag, flu, gonorrhea, graphics, health, hiv, hospital, hygiene, incubation, infect, infected, infection, influenza, leukaemia, leukemia, ma virus, medical, mucosa, mucous membranes, organ, organism, patient, science, sick, sickness, symptom, symptoms, therapy, transferable, viroid, virus,