Hello all! Hoping someone can provide some insight to this. I have 2 cats that are a little over 1 yr. old. I adopted them from the SPCA when they were kittens. When they were kittens they received their rabies and routine vaccanation shots. Turns out the one male cat is allergic to shots. In other words, every time he got a vaccanation shot or his rabies shot, within a week he would get very ill.....throwing up, fever, wouldn't eat or drink. It is now time for him to get his rabies shot again and I am afraid her is going to get sick. Does he HAVE to have that shot? He is a completley indoor cat and is not around other animals. Thanks!