Sexually Transmitted Infections

The goal of this trial is to test a modified mobile health intervention (with a group component) relative to a mobile health intervention in a two-arm randomized trial with up to 500 young women who are human immunodeficiency virus (HIV)-negative and who misuse alcohol. The expected outcomes are to: (1) determine the efficacy of the virtual group component in reducing alcohol use and sexual risk and increasing pre-exposure prophylaxis (PrEP) utilization; and (2) understand selected outcomes for implementation. Participants will be randomized to receive either the mHealth app or the mHealth app plus the group component, and followed up at 3- and 6-months post-enrollment.

Floreciendo is a sexual and reproductive health workshop for Latina teens (ages 14-18 years) and their female caregivers (e.g., mothers, sisters, grandmothers). This study involves conducting a pilot optimization trial of Floreciendo using the multiphase optimization strategy (MOST) framework. The feasibility of using a 2 x 2 x 2 factorial trial design and the acceptability of the intervention components of Floreciendo will be examined. Effectiveness and implementation outcomes will be explored. This work will be conducted in partnership with community-based organizations in the Chicagoland area.

The goal of this study is to evaluate the impact of SafeSpace Sexual Health App, an innovative sexual health promotion program focused on reducing sexual risk factors and promoting sexual and reproductive health and wellbeing among young people assigned female or intersex at birth, particularly Black and/or Latine youth, LGBTQ+ youth, youth in states with high teen birth rates and youth who live in rural communities. This study utilizes a two-arm randomized control trial design to measure impacts of receiving the SafeSpace Sexual Health program compared to receiving a similar-length control app program, SafeSpace General Health that focuses on general health. The investigators will ask participants to: * Keep the SafeSpace app downloaded to their device and visit the app regularly over the course of 10 weeks. * Provide contact information. * Receive and open app push notifications for 10 weeks (up to 3 per week). * Complete 3 online surveys over a year: baseline, short-term follow-up (10 weeks after baseline), and long-term follow up (9 months after short-term follow-up). * Receive occasional text messages from the study team.