Oaxaca faces a significant risk of resurgence of vaccine-preventable diseases due to historically low vaccination coverage, particularly among the child population. Data reveal a considerable gap between the number of births and the number of immunized children, placing the state at one of the most critical levels in the country. This situation not only reflects a systemic failure but also a social resistance to accessing health services that has persisted since the pandemic, creating an environment conducive to the reappearance of highly contagious viruses such as measles. The relevance of this case for open data lies in the critical need for transparency and accessibility in public health information. When vaccination coverage data are not publicly disseminated in a clear and timely manner, it hinders the ability of civil society and the media to exercise social oversight and demand corrective actions. The fragmentation or lack of publication of these essential indicators prevents the early identification of negative trends and obstructs the inter-institutional collaboration necessary to design effective, evidence-based health campaigns. Thus, opacity in health data has direct implications for both global and local epidemiological security. By failing to make the magnitude of the problem visible, the implementation of containment strategies against the resurgence of diseases like measles—which poses an international threat—is delayed. Democratizing access to this data would enable the generation of a more informed public awareness, foster trust in institutions, and facilitate the creation of collaborative solutions to close the immunization gap before it escalates into a larger crisis.

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Published on 2024-02-11