Cookie's due this month for rabies but I haven't taken her in yet. My vet does the regular kitten shots and then one annual booster before going to the every-three-routine. In other words, Cookie got her first kitten shots, then the 3-week booster, then when she turned 1 she got all her shots again. But this year she will get only rabies (required every year by law).

My vet first told me about this about 4 or 5 years ago. At the time it was recommended that vets rotate sites, and also note the manufacturer and lot number given each year and at what site, because they didn't know if it was any shot, or if it was only one type, and only one manufacturer. Then, if the tumors continued, they could better study specifically what might be causing it. I haven't asked since then if there were further developments, but I will try to remember when Coo goes in.