You hit it on the head, STRESS is the culprit. Annie never showed signs of FELV until a the age of 4, her owner was diagnosed with liver cancer and quickly went to hospice. Then she was locked up in a single trailer for 3 weeks with only contact was someone feeding and changing the box. After that she was boxed up, brought to the vet and then to my house. Too much change too fast. She still has emotional problems.
---- Margo <toomanykitti...@earthlink.net> wrote: > > Hi Lorrie, > > What approximate age were they when tested? Just a single snap > (Elisa) test? No confirmation? I have come to the conclusion that a negative > subsequent to a positive result is pretty unreliable, because thru personal > experience I have had cats that tested negative multiple times, and no > possibility of exposure after that break positive. I'm going with the 2008 > information on the subject from DVM ( > http://veterinarycalendar.dvm360.com/testing-kittens-felv-and-fiv-proceedings?id=&sk=&date=&%0A%09%09%09&pageID=2 > ); > > "Ideas on possible outcomes of infection with FeLV are currently undergoing > re-evaluation. In the past, it was believed that about 1/3 of cats became > persistently viremic and about 2/3 would clear infection. New research using > PCR technologies suggests that most cats remain infected for life following > exposure to FeLV. However, they may revert to a non-viremic state that is > termed regressive infection. In regressive infections, there is no antigen > present in the blood and virus cannot be cultured from blood. But FeLV > proviral DNA can be detected in blood using PCR (Pepin, Tandon et al. 2007). > The significance of PCR-positive but antigen-negative regressive infections > is not yet clear. These cats are unlikely to shed infectious virus in saliva, > but may transmit proviral DNA via blood transfusion if used as a blood donor. > Prior to the advent of PCR technology, the term "latency" was used for > antigen-negative cats where virus could not be cultured from blood, but could > be cult ur > ed from bone marrow or other tissues. It now appears that "latency" is a > phase through which cats pass during regressive infection." > > But, if they were not confirmed as kittens, there is a > possibility that the results were false. > > > And I'm with you. I don't re-test unless/until there's a reason > to do so. Stress is the enemy... > > HTH, > > Margo > > > -----Original Message----- > >From: Lorrie <felineres...@frontier.com> > >Sent: May 28, 2015 5:05 PM > >To: felvtalk@felineleukemia.org > >Subject: [Felvtalk] Positive cats > > > >Has anyone in the group had a cat or cats who tested positive on a > >snap test 7 years ago (as kittens) and are still in apparent good > >health? I have two ferals who tested positive and both are still > >doing fine. I have not had them retested due to their being feral > >as I'm afraid the stress of a vet visit will affect their immune > >systems. > > > >Lorrie > > > > > > > >_______________________________________________ > >Felvtalk mailing list > >Felvtalk@felineleukemia.org > >http://felineleukemia.org/mailman/listinfo/felvtalk_felineleukemia.org > > > _______________________________________________ > Felvtalk mailing list > Felvtalk@felineleukemia.org > http://felineleukemia.org/mailman/listinfo/felvtalk_felineleukemia.org _______________________________________________ Felvtalk mailing list Felvtalk@felineleukemia.org http://felineleukemia.org/mailman/listinfo/felvtalk_felineleukemia.org
