Multiple sclerosis (MS) is the most prevalent chronic inflammatory disorder of the central nervous system (CNS) and results in characteristic demyelinating plaques.1,2 It is estimated that ~130,000 people in the UK are living with MS3 – it is the most common non-traumatic disabling disease to affect young adults.1 The interactive clinical course of MS below introduces the key types and stages of MS:



aSPMS, active secondary progressive multiple sclerosis; CIS, clinically isolated syndrome; naSPMS, non-active secondary progressive multiple sclerosis; PPMS, primary progressive multiple sclerosis; RRMS, relapsing remitting multiple sclerosis.


  1. Dobson R, Giovannoni G. Eur J Neurol. 2019;26(1):27–40.
  2. Reich DS, Lucchinetti CF, Calabresi PA. N Engl J Med. 2018;378(2):169–180.
  3. MS Society UK. MS in the UK [online]. Available from: https://www.mssociety.org.uk/what-we-do/our-work/our-evidence/ms-in-the-uk [Last accessed: March 2021].
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UK | April 2021 | 120978

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