Integrating COVID-19 Vaccination in Primary Care Service Delivery: Insights From Implementation Research in the Philippines

The role of local health officers in advancing public health and primary care integration: lessons from the ongoing Universal Health Coverage reforms in the Philippines

The COVID-19 pandemic has highlighted the persistent fragmentation of health systems and has amplified the necessity for integration. This issue is particularly pronounced in decentralise settings, where fragmentation is evident with poor coordination that impedes timely information sharing, efficient resource allocation and effective response to health threats. It is within this context that the Philippine Universal Health Care law introduced reforms focusing on equitable access and resilient health systems through intermunicipal cooperation, enhancing primary care networks and harnessing digital health technologies-efforts that underline the demand for a comprehensively integrated healthcare system. The WHO and the global community have long called for integration as a strategy to optimise healthcare delivery. The authors contend that at the core of health system integration lies the need to synchronise public health and primary care interventions to enhance individual and population health. Drawing lessons from the implementation of a pilot project in the Philippines which demonstrates an integrated approach to delivering COVID-19 vaccination, family planning and primary care services, this paper examines the crucial role of local health officers in the process, offering insights and practical lessons for engaging these key actors to advance health system integration. These lessons may hold relevance for other low-ncome and middle-income economies pursuing similar reforms, providing a path forward towards achieving universal health coverage.

Group-based trajectory models of integrated vaccine delivery and equity in low- and middle-income countries

BACKGROUND

Integrated vaccine delivery - the linkage of routine vaccination with provision of other essential health services - is a hallmark of robust primary care systems that has been linked to equitable improvements in population health outcomes.

METHODS

We gathered longitudinal data relating to routine immunization coverage and vaccination equity in 78 low- and middle-income countries that have ever received support from Gavi, the Vaccine Alliance, using multiple imputation to handle missing values. We then estimated several group-based trajectory models to describe the relationship between integrated vaccine delivery and vaccination equity in these countries. Finally, we used multinomial logistic regression to identify predictors of group membership.

RESULTS

We identified five distinct trajectories of geographic vaccination equity across both the imputed and non-imputed datasets, along with two and four trajectories of socioeconomic vaccination equity in the imputed and non-imputed datasets, respectively. Integration was associated with reductions in the slope index of inequality of measles vaccination in the countries analyzed. Integration was also associated with an increase in the percentage of districts reporting high measles vaccination coverage.

CONCLUSIONS

Integrated vaccine delivery is most strongly associated with improvements in vaccination equity in settings with high baseline levels of inequity. Continued scholarship is needed to further characterize the relationship between integration and health equity, as well as to improve measurement of vaccination coverage and integration.