Will Falconer, DVM Moderator
Holy cow, Chrissie, you stuck to your guns and got to a solution, sounds like! Bravo on your persistence and dedication in the face of steep resistance! I'm sure our readers would love to hear of the brand you ended up with and whether it's widely available.
As you've rightly judged, this guy should remain vaccine free for the rest of his life. And I'm sure in addition to making his food, you're staying far away from the pesticides in common use against fleas and heartworms.