SFI: Only 8 cases have ever been diagnosed as of july 2005, so it is extremely rare.
Answered 10/25/2018
5.6k views
Yes, EXTREMELY rare: I read that 16 cases of sporadic fatal insomnia are in the literature as of 2011 . . . . Which still makes it extremely rare! http://www.Biomedcentral.Com/1471-2377/11/136.
Answered 12/5/2015
5.6k views
Sfi: Extremely rare, with 8 more cases reported worldwide between 2005 and 2011.
Answered 5/26/2016
5.6k views
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