How long after a cat was last vaccinated for FeLV can a cancer form at the injection site?
Ronald W. ("Ronn!") Blankenship
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circa Wed, 26 Nov 2003 03:45:40 GMT, in rec.pets.cats.health+behav, Ronn Blankenship (Email Removed) said,
How long after a cat was last vaccinated for FeLV can a cancer form at the injection site?

http://www.avma.org/vafstf /
Especially: http://www.avma.org/vafstf/ownbroch.asp

This is a good place to start researching. AIUI, the lump usually forms shortly after vaccination and instead of going away in a day or a week or a few weeks, goes on to become a cancerous tumor. The link I provided gives some good information.
HTH,
Laura

I am Dyslexia of Borg,
Your ass will be laminated.
How long after a cat was last vaccinated for FeLV can a cancer form at the injection site?

~3 months to ~3 years after vaccination.
http://www.maxshouse.com/Oncology/vaccine induced sarcoma.htm
http://www.avma.org/vafstf / Especially: http://www.avma.org/vafstf/ownbroch.asp This is a good place to start researching. AIUI, the lump usually forms shortly after vaccination and ... a few weeks, goes on to become a cancerous tumor. The link I provided gives some good information. HTH, Laura

~3 months to ~3 years after vaccination. http://www.maxshouse.com/Oncology/vaccine induced sarcoma.htm
Thank you, Laura and Phil. Some of the web sites you mentioned were ones I had discovered on my own; some others were new. The information I had read said "several months", but AFAIK none of them said "years." D.J. was vaccinated for FeLV in May-June (same time as rabies and the other vaccination whose proper name escapes me right now) of 1999 (when I adopted him) and 2000 and possibly 2001 (I stopped after the vet mentioned the potential for injection-site sarcoma, because except for those occasions when he would dash out the door when it was open and then frequently upon discovering he was indeed outside turned back to pound on the door to be let back in he was entirely but definitely not in 2002 (though he did get the other shots then).

This year, he developed a lump on his back between his shoulders which appeared literally overnight.
Ronn! Emotion: smile and Midnight =^.^= ,
Spot (1992—96), Andy (1989—99), and D.J. (1994±1?—25 November 2003)
Hi Ronn,
You might also want to check out www.catshots.com. It's an excellent site on sarcomas. Good luck and I hope your kitty is ok.

Lauren

See my cats: http://community.webshots.com/album/56955940rWhxAe Raw Diet Info: http://www.holisticat.com/drjletter.html http://www.geocities.com/rawfeeders/ForCatsOnly.html Declawing Info: http://www.wholecat.com/articles/claws.htm
Hi Ronn, You might also want to check out www.catshots.com. It's an excellent site on sarcomas. Good luck and I hope your kitty is ok. Lauren

Sorry . . . I guess your mail program cut off the bottom part. He passed away last night about 6 PM CST (midnight GMT for those in various parts of the world).I'm just still kinda wondering how something could have developed as a result of the FeLV vaccination when the last time I know for sure that he got the FeLV vaccination was 7 April 2000, and while I can't be absolutely sure about whether he got the FeLV vaccination with his other shots in 2001 (I know where his rabies vaccination certificate is, 'cuz I keep them handy in case the county inspector drops by to check (although as yet none ever has) but I'm not sure where the other stuff from that year might be), but I'm certain he didn't get one last summer when he got his other shots because the vet had said that if he doesn't go outside (which he didn't except on those infrequent occasions when he would run past me when the door was open, and his reaction many of those times was to get less than ten feet from the door before turning around and running back to the door and pounding on it and reaching for the doorknob one of the first things I noticed about him was that he was tall enough to reach the sink standing on his hind legs to get back inside) he didn't need the FeLV shot, and there was that tiny, rare chance of the shot itself causing cancer.

As I said in an earlier message, when the knot first appeared, I checked some sites that I could find then and the examples they gave were where the lump appeared several months but apparently less than a year after the vaccination. I suppose, though, from what I've been reading that it might have been a reaction to one of the other vaccinations, or the cumulative effect of all of them, or . . . who knows.
Just still trying to figure it out . . .
I'm so sorry to hear that Emotion: sad
Karen
He passed away last night about 6 PM CST (midnight GMT for those in various parts of the world).

Ronn,
I'm so sorry to hear about your loss. You truly have my sympathies. You also have my thanks because you have performed a public service by alerting others to the dangers of some innoculations. We have discussed this on the newsgroup previously, but a loss such as yours really forces us to think about possible consequences of "routine" injections. The tragic irony, of course, is that those who have their cats innoculated are trying to do the very best they can for their kitties. It is important to ask the vet (and also do some personal research) about all vaccinations/injections and only then make a decision.
MaryL
>
I'm very sorry, Ronn. It's very scary and hard to know what is right to do in these cases.
Candace
(take the litter out before replying by e-mail)
See my cats:

"One does not meet oneself until one catches the reflection from an eye other than human." (Loren Eisely)
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