Rare Disease Day 2026
February 4, 2026
Friday, February 28, 2026 will once again mark Rare Disease Day, a global campaign celebrated on the last day of February each year (the rarest day on the calendar) to raise awareness about the more than 7,000 rare diseases - including appendix cancer and pseudomyxoma peritonei (PMP). A rare disease is considered to be a disease that affects fewer than...
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