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World MS Day

Also known as

  • World Multiple Sclerosis Day


  • the last Wednesday in May (2009 to 2017)

  • annually on May 30th (since 2018)


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World MS Day, also known as World Multiple Sclerosis Day, is observed next on Tuesday, May 30th, 2023. It was observed the last Wednesday in May from 2009 until 2017. It has been observed annually on May 30th since 2018.


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