A Social Network Approach to Improve HIV Prevention and Substance Use Treatment For People Who Use Drugs

Inclusion Criteria: Aim 1 - Virtual Focus Group * Is 18 years or older * Is a current TSP staff * Is capable and willing to provide consent Aim 2 - Intervention * 18 years or older * Spend majority of their time in the Los Angeles, CA area where recruited * Able to complete surveys and group sessions in English * Self-report to have injected drugs in the past 3 months * Self-reported HIV negative serostatus * Not currently on PrEP or MOUD * Not pregnant * If a network recruit: presents a valid recruitment coupon * Is capable and willing to provide consent Aim 3 - Virtual Focus Group/Surveys * Is 18 years or older * Is a current TSP staff * Is capable and willing to provide consent Exclusion Criteria: Aims 1 and 3: • Individuals who are not current TSP staff members will be excluded from participation. Aim 2: * Under age 18; * Does not spend majority of time in the Los Angeles, CA area where recruited; * Unable to complete surveys and groups sessions in English; * Does not self-report injecting drugs in past 3 months; * Self-reported HIV positive serostatus * Currently on PrEP or MOUD * Currently pregnant * If a network recruit: does not present a valid recruitment coupon