I can add to this. I was tempted and let her drink the vial and then gave in to temtation. Vapor went all over the village and I now have 70 sick villagers.

The person who drank the vial was unaffected I have had to quickly train her in medicine and then try and cure the other Doctors in the village so as to cure the rest.

Will let you know what happens.

So far it is pretty slow going. I expect great losses.

What annoys me about the game is sometimes they just stand around. I mean a Doctor knowing people are sick would go cure them all but I find they do 1 or 2 and then stand around, exercise, swim etc.

Have to micromanage the whole thing.