Data, Evidence, Education: Tackling the Global Multi‑Trillion‑Dollar Rare Disease Burden
February 25, 2026 | Wold Health Assembly, World Economic Forum, rare disease
Rare diseases are individually uncommon, yet together they affect an estimated 300 million+ people worldwide and touch the lives of over one billion when families and caregivers are included. For the >7,000 distinct rare conditions, around 70% of which begin in childhood, many patients and families face common challenges including delayed diagnosis, fragmented care, and significant social and financial burdens. A recent World Economic Forum white paper, “Making Rare Diseases Count: How Better Data Can Unlock a Multi‑Trillion‑Dollar Opportunity,” argues that these conditions represent not only a profound human challenge, but also one of the largest untapped opportunities in global health and economic resilience.
The paper highlights the massive but largely invisible cost of rare diseases, estimated at between USD 7.2 and 8.6 trillion each year, and calls for stronger data systems to make this burden visible and actionable. Its roadmap centres on five priorities: defining a minimum dataset across countries, strengthening patient registries, expanding screening and diagnostic capacity, enabling trusted data sharing, and using AI and digital tools to close evidence gaps.
This agenda builds on growing policy momentum, including the pivotal 2025 World Health Assembly resolution on rare diseases, sponsored by Egypt and Spain and co‑sponsored by 39 other UN Member States, which includes a call to member states to support education for healthcare providers on rare diseases. Shortening the diagnostic odyssey through education is crucial: today, only 19% of physicians feel confident diagnosing rare diseases, and many patients wait years for an accurate diagnosis.
Medscape, as a contributor to the WEF paper, brings evidence that targeted professional education can help close this gap. Its rare disease programmes, informed by global survey data and real‑world outcomes, have shown that clinicians who participate in accredited training as compared with similar cohorts who do not, order significantly more genetic tests and code more often for rare diseases. This suggests that education may help shorten the diagnostic journey in real world practice. Medscape data also reveal striking gaps in physician awareness of rare disease prevalence, with a majority reporting that they never or rarely (defined as 1-2x per year), see rare disease patients despite evidence suggesting they should be seeing several per week.
With a community of >13 million healthcare professionals and the largest dedicated library of rare disease education, Medscape is positioned to translate the WEF’s data‑driven roadmap into everyday clinical practice. By aligning better data with focused education, the rare‑disease community can turn global recognition into earlier diagnoses, better access to care, and measurable value for patients, health systems, and societies worldwide.
To learn more about how Medscape Education is tackling the rare disease burden through precision education, please contact S Christy Rohani‑Montez.
Sign up to Medscape Education’s Rare Disease Newsletter here.
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