We recently adopted a kitten from a shelter who was estimated to be 8 weeks old. In looking over his medical records it says he was vaccinated for FVRCCP at three weeks of age when he was brought to the shelter. He received additional FVRCCP vacs at 5 weeks and again at 7 weeks. This is way out of line from most vaccine recommendations I have found. Usually they don't start until 8 weeks and you do subsequent injections at 4 week intervals. Is it normal practice at shelters to start them early? Should I have my vet continue with his vacs every four weeks? It seems like it would be over-vaccinating this baby!