After an initial ramp-up phase to ensure intervention materials and protocols meet the needs of the target population and organizational setting, we will apply a stratified randomized design to enroll 250 adult PWID with recently diagnosed HCV infection ("index") and their primary injecting partner("partner") into a randomized control efficacy trial of a two-session partner navigation intervention, compared to standard of care. The primary endpoint is starting HCV treatment. Recruitment will over sample PWID between 18-30 years of age.
