In this project, the research team will identify and analyze the explicit and implicit ethical deliberations and assessments that occur during scientific review and policy-making regarding COVID-19 vaccines and vaccination programs. They will evaluate the processes by which those ethical deliberations are included in decision-making and their implications for the structure and function of vaccination policies, and will offer recommendations for strengthening those activities. Through their research, the team will inform and enhance public and expert discourse around the ethics of mass vaccination programs.