I recieved a notice form the Vet that Pansy is due for his FDV/RT Distemper booster. My cats are indoors only, and after the initial vaccinations I do not do an annual vaccine. Pansy is 1 year and 7 months and I know he got all the initial shots and follow ups, but it has been so long since I had a cat this young, I am not sure if this one is considered necessary or not. I will never do the annual innoculation thing, if they are getting surgery, I will get the required rabies and whatever else the doc requires, but is this a major one, or can I forget about it?