“…However, there is a cumulative risk factor involved in the determinism of severe infections in HIV-infected patients: race, ethnicity, training, drug and/or alcohol use, smoking, co-morbidities, repeated hospitalizations, co-infection with hepatitis viruses, low levels of CD4 T lymphocytes, high viremia, adherence and, last but not least, patient's compliance with antiretroviral therapy [7].…”