Although overall mortality rates in dialysis patients have improved during the last decade or so, infections remain a leading cause of death, second only to cardiovascular disease. In addition, infections account for a major share of hospitalizations in this patient population. Receiving hemodialysis treatments in an outpatient dialysis facility significantly contributes to patients’ risks for infection. In dialysis units, patient-to-patient transmission of viral pathogens such as hepatitis B virus, hepatitis C virus, and human immunodeficiency virus can occur; proper screening and vaccination of patients can decrease the risk for transmission.