Mary and all,

Argyria has never been demonstrated to be reversed.

Therefore, whatever Mary's patients condition, it was not Argyria. [Never 
say never, but very low probability]

Some considerations:   Were the affected people in the same geographic 
area?   Were they using water from the same source?   Was it well water 
from a small private well?

Was there any sort of industrial activity in the area where the smurfed 
people live?

Is there a sample of the silver available?  Can more of the homemade silver 
be made, using the same water as before?

James Osbourne Holmes
[email protected]
FTNWO

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