RecruitingBehavioural interventionContinuum of Care in Hospitalized Patients With Opioid/Stimulant Use Disorder and Infectious Complications From Drug UseThis is a two-group randomized controlled trial conducted at five hospitals across the U.S. designed to test the effectiveness of an Integrated infectious diseases/Substance Use Disorder outpatient clinic (IC) compared to treatment as usual aimed at reducing infection related readmissions and improving health outcomes in people hospitalized with an infection related to injecting opioids or stimulants.