Immunization rates for children and adults are rising, but coverage levels have not reached optimal goals. As a result, vaccine-preventable diseases still occur. In an era of increasing complexity of immunization schedules, rising expectations about the performance of primary care, and large demands on primary care providers, it is important to understand and promote interventions that work in primary care settings to increase immunization coverage.

Key findings

- Reminding people to have vaccinations likely increases the number of people who receive vaccinations by an average of 8 percentage points.

- Reminding people over the telephone was more effective than the other types of reminders.

- The increases in vaccinations were observed among children, adolescents, and adults.