Fragmented by design: why Caribbean disease surveillance couldn’t cross borders

Effective public health surveillance depends on the ability to consolidate, interpret, and act on data from multiple sources in near real time. Across the Caribbean, that ability is systemically constrained. CARPHA member states operate health information systems that are fragmented by design, built at different times and to different standards, with different governance arrangements, producing a regional picture that is chronically incomplete. When a disease event emerges or a population health trend requires coordinated response, the information needed to act is scattered across incompatible datasets, held by actors with no data-sharing framework, and subject to security and sovereignty considerations that have never been formally resolved. The result is that CARPHA, despite its mandate to lead regional surveillance, cannot routinely access the integrated data its analytical and response functions require. This is not a technology problem. It is a governance, standards, and architecture problem that technology alone cannot solve.

BAO Systems was engaged to design the foundational infrastructure (conceptual and technical) that would make integrated health surveillance across the Caribbean possible. The assignment required working at the intersection of policy, data architecture, and regional stakeholder dynamics, and was structured accordingly.

BAO Systems began with a systematic desk-based review of existing data integration frameworks, regional health information manuals, and international standards relevant to the Caribbean context. This established the evidence base from which a regionally appropriate approach could be derived, rather than importing frameworks designed for different institutional environments. In parallel, BAO Systems worked closely with CARPHA to conduct a structured needs assessment with public health actors across member states, identifying the specific data requirements, operational priorities, and existing capability gaps that any integrated system would need to address. This stakeholder engagement was essential: technical requirements that fail to reflect the realities of the institutions responsible for implementing and sustaining them consistently fall short at the adoption stage.

From that foundation, BAO Systems developed a harmonized data standards and governance framework establishing the rules by which member state data could be shared, integrated, and used at the regional level. This included formal data security protocols (defining classification requirements, access controls, and transmission standards) and a governance structure that clarified institutional accountability: who owns what data, who is authorized to access it, under what conditions, and how compliance is maintained. Alongside these governance instruments, BAO Systems produced technical systems requirements that translated the policy framework into specifications capable of informing procurement, system configuration, or platform development by CARPHA or its implementing partners.

The work delivered by BAO Systems gave CARPHA something it previously lacked: a coherent, evidence-based blueprint for regional health data integration. The comprehensive analysis of data needs, quality, and accessibility requirements produced a shared understanding of the problem across member states, establishing common ground that is itself a precondition for any technical solution to take hold. The harmonized data standards and governance framework provided the institutional scaffolding that regional surveillance has long required, resolving the jurisdictional ambiguities and accountability gaps that have historically prevented data from flowing across borders in a timely and secure manner.

By addressing governance and architecture before platform selection or system build, BAO Systems ensured that CARPHA’s investment is protected against the implementation failures that follow when technical infrastructure outpaces institutional readiness. The framework is designed to be durable: applicable across existing and future health information systems, adaptable as member state capacities evolve, and grounded in the specific operational context of the Caribbean region rather than generic international templates. For a regional body whose effectiveness depends on the quality and availability of data it does not itself generate, that foundation is the critical first step.