Just talked to the Veterinary Pet Insurance, VPI (1-800-USA PETS), I
asked what they cover as far as ferrets.  The lady said, hospitalization,
prescriptions, and even cancers.  I specifically asked, "Does it cover
adrenal cancers, that some ferrets get as they get up in years?"
Her answer was, "Yes, as long as it was not a preexisting condition at
time of enrollment."
 
Hope this helps some.
Margie
[Posted in FML issue 3506]