Main Entry: dis·ease
Pronunciation: \di-ˈzēz\
Function: noun
Etymology: Middle English disese, from Anglo-French desease, desaise, from des- dis- + eise ease
Date: 14th century
1obsolete : trouble
2: a condition of the living animal or plant body or of one of its parts that impairs normal functioning and is typically manifested by distinguishing signs and symptoms : sickness, malady
3: a harmful development (as in a social institution)
By this definition, both foie and huitlacoche would qualify, while mushrooms certainly wouldn't, as I believe they primarily feast on dead/decaying things, no? Yeast also wouldn't be considered a disease... unless you're talking about a yeast infection? But even in that case, every infection isn't considered a disease. This is also a dictionary definition, not a medical definition.
(Correct me if I'm wrong on the mushrooms, Cathy. And as for foie, you know nobody's more pro-foie than me, but the degree to which foie livers are fattened isn't even close to any state the bird would reach naturally, and it would, indeed, be a serious health problem for the birds were they not promptly slaughtered... a significantly larger health problem

I'm not trying to be pedantic... I just think it's important to be very careful with facts so as not to undermine credibility when debating this subject).
Dominic Armato
Dining Critic
The Arizona Republic and
azcentral.com