"While much recent scholarship ... on Kallawaya rituals, has drawn attention to the virtual disappearance of this code among practicing Kallawayas today, I found knowledge and use of Sejo/Machaj Juyay to be widely-distributed among healers, even if one’s individual competence was relatively shallow.

(Because Kallawaya is a secret code of healers, and because degree of competence is difficult to assess, it is difficult to determine an exact number of speakers.)"

"Ostensibly a specialized language used by successors to the herb doctors of Inca emperors. Probably extinct. Adult men only."