Will Falconer, DVM Moderator
It's entirely possible, Carol, sure. Your titer may be the best bet, as it shows IMMUNITY, which a vaccine certificate only assumes. Please contact Dr. John Robb at ProtectThePets.com for the best way to do that affordably,
Also, if you're treating distemper affected dogs, the distemper nosode in 200C has been curative as well as preventative. Please contact me from my support link (lower right, green icon) if you'd like help getting some.