Maureen, I don't have links to the science to answer your question. I do know there are at least 3 versions of FeLV. Personally I wouldn't take the chance of mixing without 1st vaccinating any negatives in the house. I have mixed negatives and positives but my negatives were always current on their vaccine. Sharyl
--- On Tue, 3/29/11, Maureen Olive <[email protected]> wrote: From: Maureen Olvey <[email protected]> Subject: [Felvtalk] Question about the virus itself To: [email protected] Date: Tuesday, March 29, 2011, 12:30 PM I've got a question about the FeLV virus itself. Is it all the same virus or does it mutate and change like the herpes virus that causes URI? What I'm wondering is that if I've got a cat that has been exposed to the virus but extinguished it, is he immune for life? Seems like I read that. So if I brought in another FeLV + kitty and my resident cat has already gotten some immunity from the virus he had been exposed to in the past, does that mean being exposed to the virus through another cat would be the same as the virus that he was first exposed to so his immunity would work against that virus? Does that make sense? I'm wondering if I brought in another FeLV + cat would I need to vaccinate my cat that has already been exposed and extinguished the virus. Anyone have a clue? I guess the main question is if the virus mutates from cat to cat or is it always the same virus and doesn't change. “I am not interested to know whether vivisection produces results that are profitable to the human race or doesn’t….the pain which it inflicts upon unconsenting animals is the basis of my enmity toward it, and it is to me sufficient justification of the enmity without looking further.” – Mark Twain _______________________________________________ Felvtalk mailing list [email protected] http://felineleukemia.org/mailman/listinfo/felvtalk_felineleukemia.org _______________________________________________ Felvtalk mailing list [email protected] http://felineleukemia.org/mailman/listinfo/felvtalk_felineleukemia.org
