Information from: “Judeo-Iranian Languages” . Borjian, Habib (2015) , Rubin, Aaron D. and Lily Kahn · Brill
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"All these vernaculars [of Judeo-Median] are on the verge of disappearing, and no reliable data exist on the number of speakers."
- More on Orthography
"As none of the Judeo-Median languages have developed a written form, they are known to scholars only through fieldwork."