some articles on net say 3 years causes cancer.

he is an indoor and 6 y.o.

The first thing is to evaluate whether or not your cat needs or is required to have a rabies vaccine.  I recommend it to all cats that are outdoors frequently but only about 1/3 of indoor cats are vaccinated for rabies (at our clinic).   The rabies vaccine does have the rare potential to cause what is called a vaccine sarcoma which is a form of tumor that is usually localized to the area where the vaccine was given (should be given in the right, rear leg).  To my knowledge there is no real data that suggests a 3 year vaccine has a higher incidence of cancer occurrence than a one year.  Ask your vet next time you are there; don't rely on internet comments or Dr. Google.

My cats are 100% indoor.  They get vaccinated when kittens but I don't fool with it after that.  There is no way they are getting rabies laying around my house.

cschelk2, StewartTR
Thank you!

Not calling you out so dont take it that way; the sole reason we vaccinate indoor cats for rabies is because of bats.  I've had countless bats sent out for rabies testing that were found in peoples houses, fortunately they were all negative for rabies but its something to note.

My dog caught cancer at the injection site nearly every vaccine. It wasn't a 3 yr either. Our vette told us to quit vaccinating her once he figured out what was going on. My dog had a few surgeries to get rid of the cancer.

The last dog I put down had a 3 yr rabies though.
After that shot she had a harder time walking, the rear right leg quit getting the brain signal. She had a couple seizure like episodes. Life sucked for her for about a year until I put her down. She was old though.

My dog not only had a reaction (lump) at the injection site, she has developed AID (autoimmune disease).  Specifically she has IMPA and IBD.  There are multiple studies online that dogs with IMPA show a significantly higher number of distemper antibodies than in normal dogs.  There's only one way for those to have gotten there.

She will never get another vaccine and I've been given a losing situation.  This disease will ultimately end her life.  She will be six on 5/10/17.

Consider the benefits vs. risks on all injections. If it's an indoor cat I would say it's better off without. Outdoor cats may benefit from additional vaccines.

RIP Luna 10 year indoor cat with fibrosarcoma at injection site.
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