MSD World Day recognizes Multiple Sulfatase Deficiency (MSD), an ultra-rare disease, bringing attention to people and families affected worldwide. Each year, communities come together through fundraising efforts, state proclamations, building and landmark illuminations, and special events supported by partner MSD foundations in Argentina, Ireland, Spain, and Florida and Missouri in the United States.
July 30 is MSD World Day because it marks the birthday of Dr. Thomas Dierks, the scientist whose discovery of the SUMF1 gene changed how MSD is understood. His work helped identify the genetic cause of MSD, making diagnosis possible and supporting decades of research that continue to drive progress today.
This day honors how far breakthroughs have come and highlights the work still ahead--spanning scientific discovery to major clinical advancements, including the first FDA-cleared clinical trial for investigational gene therapy. Join the awareness effort, support ongoing research, and stand with every family affected by MSD.
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