http://www.fda.gov/AnimalVeterinary/NewsEvents/CVMUpdates/ucm371450.htm Definitive cause till unknown but numbers of reports continuing though the rate has dropped since some popular ones were removed from the market (and I am guessing those are the ones found with antibiotic residue problems that were recalled) though the decrease may simply be because of less use of jerky treats. Sukie (not a vet) Ferrets make the world a game. Recommended ferret health links: http://pets.groups.yahoo.com/group/ferrethealth/ http://ferrethealth.org/archive/ http://www.miamiferret.org/ http://www.ferrethealth.msu.edu/ all ferret topics: http://listserv.ferretmailinglist.org/archives/ferret-search.html "All hail the procrastinators for they shall rule the world tomorrow." (2010, Steve Crandall) A nation is as free as the least within it. [Posted in FML 7945]