The "Morbidity and Mortality Weekly Report (MMWR)" is prepared by the Centers for Disease Control and Prevention (CDC). Articles included in the report are: (1) Overview and Methods for the Youth Risk Behavior Surveillance System--United States, 2019; (2) Condom and Contraceptive Use Among Sexually Active High School Students--Youth Risk Behavior Survey, United States, 2019; (3) Trends in Violence Victimization and Suicide Risk by Sexual Identity Among High School Students--Youth Risk Behavior Survey, United States, 2015-2019; (4) Interpersonal Violence Victimization Among High School Students--Youth Risk Behavior Survey, United States, 2019; (5) Prescription Opioid Misuse and Use of Alcohol and Other Substances Among High School Students--Youth Risk Behavior Survey, United States, 2019; (6) Suicidal Ideation and Behaviors Among High School Students--Youth Risk Behavior Survey, United States, 2019; (7) Tobacco Product Use Among High School Students--Youth Risk Behavior Survey, United States, 2019 (8) Dietary and Physical Activity Behaviors Among High School Students--Youth Risk Behavior Survey, United States, 2019; and (9) Transportation Risk Behaviors Among High School Students--Youth Risk Behavior Survey, United States, 2019.