A sobering finding from WHO’s 2026 global survey underscores a critical vulnerability in global health infrastructure: only 37% of countries routinely collect migration-related health data. This statistic becomes more alarming when contextualized—two-thirds of the world’s nations have adopted health policies nominally including migrants, yet most cannot measure implementation or outcomes. The data gap has direct consequences. Without systematic collection of migration-specific health information, migrants are effectively invisible in epidemiological surveillance, health budgeting, and emergency preparedness systems. When outbreaks occur or health crises emerge, populations that lack baseline health data are the most exposed and least protected. The WHO report identifies this as the single most fixable failure in the current landscape. Establishing routine data collection mechanisms across health systems is not simply an administrative necessity—it is a foundational prerequisite for equitable care delivery and outbreak prevention in an increasingly mobile world.
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