From what my vet says, as for we have dealt with it here due to our dogs (females who have puppies will go outside and clean up any poop including rabbit poop. The rabbits also are big carriers of coccidia). as long as any animal has injested the affected poop, does not mean eating a ton of it, just a lick will do, they can get it from any animal. It does not always show up on fecal tests either depending on what stage the parasite is in, so if you suspect it, take samples in a week apart. It is a nasty parasite which needs Albon to get rid of. Ferrets and other smaller animals especially can become dehydrated very fast. Marguerite TinyPrints Shih Tzu and Rescue http://www.tinyprints-shihtzu.com TinyPrints Ferret Rescue http://www.tinyprintsferrets.com TinyPrints Ferretry http://www.tinyprintsferretry.com TinyPrints Ferret Rescue Ebay and Half.com Stores http://www.stores.ebay.com/tinyprintsferretrescuestore http://half.ebay.com/shops/shops.jsp?seller_id=1093064 [Posted in FML issue 4555]