Wyatt, TamiTaylor, PennyLi, XuepingLowe, SarahSharmin, AlizaTupayachi Silva, JoseWang, XudongMcneely, CleaNiederhauser, Victoria2024-12-262024-12-262025-01-07978-0-9981331-8-803ecd10c-04d5-497c-b2be-bcc565406a06https://hdl.handle.net/10125/109251According to the Immunization Status Survey conducted by the Tennessee Department of Health in 2023, Tennessee ranks in the bottom 25th percentile among states for vaccination rates by the age of 24 months, based on the full series of recommended vaccines. To tackle this issue, the SmartSHOTS mobile application was developed to reduce barriers to vaccinations for children aged 0-24 months. The app includes features such as vaccine information, the ability to add and calculate vaccine due dates, and the ability to locate health departments and transportation services based on zip codes. The app was developed and usability tested using an iterative design process, based on a needs assessment conducted across regions of Tennessee with community members who served on the state’s county health council. These community members also reviewed the app wireframes. Parents or guardians of children aged 0-24 months are currently evaluating the app (preliminary findings reported here). SmartSHOTS will then be available on Google Play and the Apple Store.10Attribution-NonCommercial-NoDerivatives 4.0 InternationalHealth Behavior Change Support Systemschildhood vaccinations, mobile health app design, usability testing, vaccine barriersConference Paper