Hi all, back again! I'm still going down some rabbit holes of information here and was wondering if anyone has had their cat/dog vaccinated on their tail? Was your vet on board? How did your pet react? I haven't been able to find any recent information on this except for a study from 2013. My vet seemed to be on board with my cat but as with everything I'm looking at all the alternatives. 

From the study:

"It is also possible that vaccination in the distal tail might facilitate early detection of FISS, as the tail is highly visible and pet owners frequently stroke the tail when handling their cats. Early detection is a factor in the prevention of metastatic disease in FISS. If tail vaccination is adopted, care should be taken to assure the vaccine is administered in the distal third of the tail and only in cats with long tails. The occurrence of FISS in
a more proximal location could be devastating as wide surgical margins would be exceedingly difficult to obtain in the perineal area. Based on the promising findings of this small study, further research is indicated to better characterize the acute and long-term effects of tail vaccination in a larger population of cats of different ages and body sizes, and in cats receiving multiple booster vaccines"

https://shelter.....x-levy.pdf

Study results indicate there are no significant differences in the behavior of the cats that receive vaccinations below the knee and in the tail. All but one cat that received the tail vaccines developed protective antibody titers. The researchers concluded that tail vaccination was well tolerated by the cats in the study and was as effective as vaccines injected in the lower rear legs.

alternative pdf: https://vetmed-.....vy-web.pdf

As with anything, there's always a risk but I feel if it were to come down to it I would rather vaccinate on the tail.