This research is studying a vaccine against Mpox (formerly known as monkeypox) that is FDA approved for adults but not yet approved for children. The goal of the study is to determine if the vaccine protects children just as well as it protects adults. The study is also looking at the safety of the vaccine. This study is open to healthy adolescents, ages 12-17. In addition, adolescents with certain immunodeficiency diseases or other conditions, that are well controlled, are eligible to participate.

The Children's Hospital of Philadelphia is recruiting teen drivers to participate in a study that is testing different types of driver training program for reducing new driver crash risk. This study is open to teens between the ages of 16-17 years old who already have an active Pennsylvania learner permit.

We are looking for adolescents who have a current diagnosis of anorexia nervosa or other specified feeding and eating disorder and one parent to participate in a study to help us understand higher order thinking differences in teens with eating disorders. We are also looking for adolescents who do not have an eating disorder. The purpose of this study is to look for associations between higher order thinking and eating disorders. These findings may help us understand the impact of eating disorders on thinking skills.

This study wants to know about the problems that Black or African American teenagers with type 1 diabetes (T1D) and their families face. It also wants to see how these problems affect their feelings, behavior, and how they get along with others. The study will find out how well they can handle T1D and adapt to it. It will also learn how good things like being strong, family, and where they live might help young people who have to deal with hard things. This includes how well they handle their feelings, behavior, relationships, and T1D care.

The purpose of this study is to identify and engage young black or hispanic/latino men (male sex at birth, but gender identity male, transfemale, or gender nonconforming) (YBLMSM/transwomen) in Philadelphia, PA, Baltimore, MD and Washington, DC in HIV and substance use prevention using a new Mobile-enhanced Engagement intervention (app that reminds you to take your meds, reminds you of your medical appointments, etc.). There are three different parts to this study: 1) respondent driven sampling (RDS); 2) Randomized Control Trial (RCT): MEI vs Standard of Care for HIV+ youth; and 3) PrEP RCT: Pre Exposure Prophylaxis - Mobile-enhanced Engagement Intervention (PrEP-MEI) vs. Standard PrEP referral;. It is possible to participate in only the RDS, the RDS and the AIM 3 PrEP RCT, or the RDS and AIM 2 RCT studies.

The RDS study involves 2 study visits lasting up to 1 month of participation where participants will be asked to complete an optional rapid HIV test (oral or fingerstick) or viral load testing (blood draw), web-based survey (on past sexual and HIV experiences), recruit your peers to participate in the study, and complete a post-recruitment survey. YBLMSM/transwomen and cisgender females 15-24 years may participate in RDS, but the following study portions are only for YBLMSM/transwomen:

People who successfully complete the RDS portion of the study may be asked to participate in an additional study visit of an audio-recorded focus group or interview.

The RCT study involves 6 study visits (5 in person, 1 phone) and lasts 18 months. Participants will be assigned to one of two groups receiving different HIV supportive interventions: 1) HIV case management with a Mobile-enhanced Engagement Intervention (MEI), or 2) standard of care HIV case management where a case manager will remind you of medical appointments. If you are assigned to the first group (MEI), you will be asked to use the MEI mobile app or web-browser version of the app during the study period. Participants will be asked to complete a web-survey (on past sexual and HIV experiences), HIV Antibody and Viral load testing (blood draw), urine drug testing, and allow the researchers to access your medical charts for HIV and STI testing results. You may also be asked to participate in audio-recorded in-depth interviews.

The PrEP RCT study involves 5 study visits (5 in person, 1 phone) and lasts 18 months. Participants will be assigned to one of two groups receiving different PrEP and substance use supportive interventions: 1) PrEP case management with a Mobile-enhanced Engagement Intervention (MEI-PrEP), or 2) standard PrEP referrals to services. If you are assigned to the first group (MEI-PrEP), you will be asked to use the MEI-PrEP mobile app or web-browser version of the app during the study period. Participants will be asked to complete a web-survey (on past sexual and HIV experiences), HIV Antibody (blood draw or 2 rapid OraQuick tests in place of serologic 4th generation testing when 4th generation testing is not available) and Viral load testing (blood draw), urine drug testing, use the MEI-PrEP mobile app or web-browser version of the app, and allow the researchers to access your medical charts for HIV and STI testing results. You may also be asked to participate in audio-recorded in-depth interviews.

Conversations are important for getting along in everyday life, but we don't really know what makes them successful. This study aims to find out what factors help make conversations better. By looking at different talking styles and techniques, we want to learn how to have more effective and enjoyable conversations. We are seeking volunteers between 12-15 years old both with and without autism and their families to partner with us.

The purpose of this study is to evaluate social interactions in adolescents and whether changes in information can influence social behaviors. This study will focus on behavioral assessments of social processing over time in adolescents. The information collected in this study is essential for developing clinical treatments focused on addressing social processes in adolescents with restrictive eating disorders and to improve our understanding of social processing in adolescents with restrictive eating disorders, informing both future research and clinical care.