(Scientific American article) Terrible toll of 76 autoimmune diseases

[agate]

This article in Scientific American (September 1, 2021) includes a chart that shows just how common MS is--and Sunshine's SPS is one of the rarest diseases on the list--"The terrible toll of 76 autoimmune diseases":

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[Sunshine 2]

Very interesting but SPS has more female than male— chart doesnt show that

and SPS is one per 1,000.000. ,not less than thar

[agate]

Well, according to this the frequency isn't known very exactly but is thought to be "around" 1 in 1,000,000:

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