[moyix]

The paper mentions in passing in the discussion section:

"Moreover, antifungal treatment in two patients diagnosed with AD reversed clinical symptoms [51,52]. The interpretation of these results was that perhaps these patients were misdiagnosed."

[51] Ala, T. A., Doss, R. C. & Sullivan, C. J. Reversible dementia: a case of cryptococcal meningitis masquerading as Alzheimer’s disease. J Alzheimers Dis 6, 503–508 (2004).

[52] Hoffmann, M., Muniz, J., Carroll, E. & De Villasante, J. Cryptococcal meningitis misdiagnosed as Alzheimer’s disease: complete neurological and cognitive recovery with treatment. J Alzheimers Dis 16, 517–520 (2009).

[calinet6]

Wow. So there's a possibility that they were, in fact, diagnosed properly with Alzheimer's, and accidentally treated properly. Amazing.