Check out this article that appeared in the Financial Times:
http://www.ft.com/intl/cms/s/2/a8e634ee-68c0-11e1-a6cc-00144feabdc0.html#axzz1op05XkHu (http://www.ft.com/intl/cms/s/2/a8e634ee-68c0-11e1-a6cc-00144feabdc0.html#axzz1op05XkHu)
Good article. Note the estimate of anaphylaxis deaths is 1,500 (not the 200 often quoted).