This is just an FYI as opposed to just letting them do the humane thing of
putting them down. They call it humane but Kivorkian went to prison for
being humane. So maybe humane and human have nothing to do with each other.

Steven Slagle, DVM  - A cat with Leukemia, an oral tumor, and posterior
paralysis due to a spinal tumor was very ill and emaciated.  One month after
starting her on Transfer Factor Plus at 1 capsule per day, there was some
regression of the oral tumor, restored appetite with some weight gain, and
increased sociability.  Five months later, this cat continues to improve -
she regained her normal weight, her oral tumor has regressed 80%, and she
has regained the use of her hind legs and tail.

http://www.powerbod.com/us/bbeck/?page=pets2

http://www.powerbod.com/us/bbeck/?page=home#testimonials