RecruitingExpanding HOPE LiverThis is a prospective, multicenter clinical study. The objective is to determine whether a liver transplant from a deceased donor with HIV is associated with an increased risk of opportunistic infection and cancer. Adults with Human Immunodeficiency Virus (HIV) in need of a liver or simultaneous liver-kidney (SLK) transplant who meet study-specified criteria will be offered enrollment in the study. The analytic plan includes an observational cohort of liver and SLK transplant recipients from prior HOPE in Action studies.