At the bottom of the page are links to vaccination sites which are more complex in their detail and recommend annual vaccinations. (lowchensaustralia.com)
This, combined with the low incidence but terrible consequences of cancer formation (sarcoma) at vaccination sites in cats has been enough to sway us to go to a three year vaccination protocol in cats. (vetinfo.com)
Veterinarians noticed that these sarcomas were turning up near vaccination sites and in 1996, the American Veterinary Medical Association, American Animal Hospital Association, American Association of Feline Practitioners and Veterinary Cancer Society jointly formed the Vaccine - Associated Feline Sarcoma Task Force (VAFSTF) to investigate the problem. (alleycat.org)