a) Know the epidemiology of infection by HIV and the hepatitis virus producing chronic infections and procedures for clinical and virological diagnosis. b) Know recognize the major clinical syndromes of presentation of the HIV infection and its complications, and know how is evaluated and treated infection by the landless. (c) Recognize the major clinical syndromes of presentation of the hepatitis virus infection and its complications, and know know is assessed and treated chronic infection caused by these viruses.