Interventions addressing routine childhood immunization and its behavioral and social drivers

Area of Science:

• Global Health
• Public Health Interventions
• Vaccination Programs

Background:

• Millions of children in low- and middle-income countries (LMICs) remain unvaccinated despite global immunization advances.
• Significant challenges persist in achieving widespread routine immunization coverage in these regions.

Purpose of the Study:

• To provide a comprehensive summary of strategies for enhancing routine immunization in LMICs.
• To assist program implementers in designing effective vaccination interventions.

Main Methods:

• Inclusion of 142 experimental and quasi-experimental impact evaluations from LMICs.
• Coding studies using an intervention framework and the WHO's Behavioral and Social Drivers (BeSD) of vaccination framework.
• Qualitative analysis of intervention strategies and identified vaccination barriers.

Main Results:

• Interventions include caregiver education, media campaigns, and incentives to address knowledge and motivation barriers.
• Automated messages and improved health worker training enhance vaccination knowledge and service quality.
• Community mobilization and health system strengthening improve vaccination access and social norms.

Conclusions:

• A multifaceted approach combining caregiver-focused, service-delivery, and community-level interventions is crucial for improving routine immunization.
• Tailoring interventions to specific barriers identified through frameworks like BeSD is essential for success.