Promotion of the creation of immunization registries that combine immunization information from different sources into a single electronic record to provide official immunization records for schools, daycare centers, health departments, and clinics is a goal of:

• A. Community-level practice.
• B. Family-level practice.
• C. Individual-level practice.
• D. Systems-level practice.

Answer: (D)

Systems-level practice focuses on coordinating across organizations and implementing policy changes to improve population health. Creating immunization registries that combine information from schools, daycare centers, health departments, and clinics into a single electronic record is an example of this level because it requires cross-agency collaboration, interoperability of health information, and standardized reporting to provide official records for multiple institutions. This approach supports population-wide surveillance and ensures accessible, accurate immunization data across settings. It goes beyond individual or family care and beyond community-level outreach, which target different scopes of influence.