Enhancing Vaccination Coverage in the Dominican Republic: Insights from an Operational Investigation

The National Immunization Program (NIP) in the Dominican Republic is committed to providing free routine vaccinations through its Ministry of Public Health and Social Assistance (MSP). As of August 2012, the vaccination schedule covers 12 diseases, including Hepatitis B, diphtheria, and measles, among others. Despite the program’s success in reducing disease incidence, vaccination coverage remains below the 90% benchmark, with specific vaccines like the oral polio and Hepatitis B showing particularly low coverage rates.

Enhancing Vaccination Coverage in the Dominican Republic: Insights from an Operational Investigation

Coverage Challenges

In 2011, the Dominican Republic recorded only 84% coverage for the third dose of the oral polio vaccine and 80% for Hepatitis B. Furthermore, significant disparities were noted across municipalities, with some areas reporting coverage as low as 50%. The underlying reasons for these low rates are unclear; however, factors such as vaccine shortages at local levels and accessibility issues are suspected to play a role, rather than a lack of demand for immunization services.

Investigating Missed Opportunities

To address these challenges, the NIP launched a study in October 2012 to identify the factors contributing to undervaccination among children in 30 high-risk municipalities. Utilizing the Methodology for the Evaluation of Missed Opportunities for Vaccination (MOVs) developed by the Pan American Health Organization (PAHO), the study aimed to identify instances where eligible children did not receive required vaccines during healthcare visits.

The investigation involved a cross-sectional study across primary and secondary healthcare facilities, focusing on adults accompanying children under five years old. A purposeful sampling method targeted areas with low vaccination coverage, ensuring that findings would be relevant to the population most in need.

Methodological Framework

The study aimed to conduct 1500 interviews to identify missed opportunities accurately. Based on demographic estimates, a quota sampling technique was employed to gather data from both urban and rural settings. Interviewers were trained on vaccine protocols and the importance of reviewing vaccination cards, as this was essential for accurate data collection. The questionnaire covered various aspects, including parental attitudes towards vaccination, communication strategies, and service quality.

Findings on Vaccination Status

Out of the children assessed, a significant number were found to be undervaccinated. The study revealed that many children had opportunities for vaccination that were missed due to misconceptions held by both caregivers and healthcare personnel. Specifically, 42.8% of missed opportunities were attributed to healthcare workers who incorrectly informed parents that their children were up to date with vaccinations.

Categorizing Missed Opportunities

The study categorized missed opportunities into three main areas: those related to healthcare personnel, caregivers, and the health system. A notable percentage of caregivers believed their children did not need vaccinations, while healthcare workers frequently overlooked the importance of checking vaccination cards. Additionally, vaccine stock shortages contributed to missed opportunities, further complicating the vaccination landscape.

Implications for Public Health

The investigation underscored that children aged 1-4 years were at a higher risk of being undervaccinated, particularly for multidose vaccines. This demographic trend suggests that parents and healthcare professionals may prioritize vaccinations for younger children, leading to complacency regarding older childrenโ€™s immunization needs.

Strategies for Improvement

In response to these findings, health authorities in the Dominican Republic have initiated communication strategies aimed at promoting awareness about vaccination, particularly in urban areas. Key recommendations include encouraging caregivers to always bring vaccination cards to health facilities and ensuring healthcare workers consistently check these cards. Training programs for healthcare professionals will be crucial to ensure they accurately assess immunization needs.

Conclusion

The study highlights a critical gap in vaccination coverage in the Dominican Republic, primarily linked to misconceptions and systemic issues within healthcare facilities. By implementing targeted strategies and fostering better communication between caregivers and health workers, the country can significantly reduce missed opportunities and enhance overall vaccination rates. As the nation continues to prioritize immunization, ongoing assessments will be essential to monitor progress and adapt approaches as needed.

  • Key Takeaways:
    • Coverage rates for vaccinations in the Dominican Republic remain below optimal levels.
    • Misconceptions among caregivers and healthcare workers contribute to missed vaccination opportunities.
    • Targeted communication strategies can improve vaccination rates and awareness.
    • Consistent review of vaccination cards by healthcare workers is essential for preventing missed opportunities.
    • Ongoing monitoring and adaptations of immunization strategies are crucial for success.

Read more โ†’ pmc.ncbi.nlm.nih.gov