There are other uncommon but serious adverse responses, including injection site tumors in cats, which can develop weeks or months after vaccination. (web-dvm.net)
Although killed or inactivated products make up about 15 % of the veterinary biologicals used, they have been associated with 85 % of the post-vaccination reactions, mainly because of the acute adverse responses induced by the adjuvants used in companion animal, wildlife and livestock species (Dodds, 1997; Luján et al, 2013). (epi4dogs.com)