We must stop vaccinating with FVRCP every year. Taking it one step further, I also disagree with the AAFP guidelines which suggest giving the FVRCP every 3 years since the risks outweigh the benefits. Why?
Consider the facts that enter into the risk-benefit analysis:
1) A single, properly-timed, FVRCP vaccine confers life-long immunity to panleukopenia (the most serious disease among the 3 that the FVRCP targets) in the vast majority of cats. Those very few cats that may not be protected are considered to be 'non-responders' and giving them more vaccines is unlikely to help.
2) Herpes and calici vaccines lack the ability to induce complete protection. At best, they will only reduce the severity of some symptoms but will not prevent infection with these viruses and will not protect the recipient from all symptoms of disease.
3) Herpes and calici viral infections do not have a high mortality rate. Death from these viruses is extremely rare and, if it did occur, it would most likely happen in kittenhood.
4) Even though a non-adjuvanted FVRCP vaccine is much less likely to cause a sarcoma, sarcomas have been noted with these vaccines.
5) And most importantly, as noted below, there is a strong link between chronic kidney disease and the FVRCP
My own cats are over 10 years of age and have not been vaccinated with FVRCP since their properly-timed kitten series.
http://www.catinfo.org/?link=vaccines Read entire article here.