Where do allergies come from?

[LinksEtc]

I saw our twitter post about this article:

"Where do allergies come from"
http://edition.cnn.com/2013/03/26/health/what-causes-allergies/index.html?c=&page=1

and thought we should include FAB's post
"What-Causes-Food-Allergies March Madness!"
http://foodallergybitch.blogspot.com/2013/03/what-causes-food-allergies-march-madness.html

As always, an interesting post.   I think "A Dark Hore" is a typo ... had to read that one twice