This series summarizes and compares the President’s proposed FY2027 budget with the FY2026 Operating Plan across a range of public health programs for the U.S. Centers for Disease Control and Prevention (CDC). Each document highlights proposed funding changes by program area, including reductions, eliminations, consolidations, and proposed transfers of responsibilities to the proposed Administration for a Healthy America (AHA). The goal is to provide readers with a clear, program-by-program overview of how the FY2027 proposal differs from current funding and organizational structures, and to help stakeholders understand the potential implications for public health activities and services.