Kerby's ADV test was NEGATIVE!! I can't help but worry it might be false, as I've been through that before, but for the moment I am greatly relieved. Re: "Is there something like Frontline for ferrets?" There is a version of Biospot (drops at the base of the neck) that is marketed for cats and ferrets. I know you can get it at Petsmart, but Petco probably has it, too. Kara (phewww!) 15 couch-dwellers, and Kerby, "Can I come out of this room now??" [Posted in FML issue 3876]