>From what I've found "light pos" is either an error on the part of the tech or a bad test. The IFA is a much more conclusive test.
On Thu, Sep 2, 2010 at 12:29 AM, Gloria B. Lane <[email protected]>wrote: > Thank you so much - this is a great group, as always, and I really > appreciate the replies. > > This is my take, re your comment Natalie. With FIV, the "snap" test is for > antibodies in the blood. Kittens of an FIV mom, when they are nursing, can > take in the mothers FIV antibodies. It's different for FELV, the test is > for Antigens, and apparently the transmission of the virus is not the same. > Kittens of an FIV mom are very likely to get the antigens but not the > virus, depending on when mom was infected. Our rescue has seen this happen > many times - kittens of an FIV mom invariably go negative before they're a > year old - yeaa! > > With FELV, as I recall its different, I think (but not sure) that some of > the kittens can actually get the virus from mom, but can throw it off as > their immune systems develop. This is just on memory, so if somebody > knows, please correct me. So I'm gather that perhaps the antigens hadn't > cleared yet at the time of the snap, and Linda seemed to agree with that. > > Anyhow, this is a 1.5 yr old cat, so the question is, with a light pos on > Elisa snap test, and a negative on the followup IFA test, what does it mean? > > MC responded and said it could also be a bad snap test. Or bad procedures > for testing. Also asked at what interval were the tests done? So I'm going > to check out exactly when the tests were done and what brand were the tests > and who did them. > > But what I'm also hearing, is if neg on the followup IFA, then kitty is neg > regardless of the snap. Yes? > > I've been asked to take this kitty, so am exploring my options. I know if > he's FELV it's unlikely he'll get adopted so he'll be a permanent resident. > I already have several FELV cats, and have no fear of the virus, even mixed > with healthy cats, vaccinated or not, but just have to be prepared for > adding another cat. My FELV's are healthy too, I haven't lost one in a > while, and I'm amazed at that. > > But I know, if he's not FELV, he'll get adopted in a month cause he's so > gorgeous! So trying to make sense of the data to tell if he's actually FELV > or not. > > Again thanks I appreciate your help and support. This is a wonderful group, > always has been, a great resource. I'll check more into the tests that were > used on Bicford and let you know. > > Gloria > > > > > > On Sep 1, 2010, at 7:18 PM, Natalie wrote: > > Whenever this happened to me with kittens that were tested for FIV, I was >> told that they had most likely been born to FIV+ mothers and as their >> immune >> systems developed, they would shed the faint positives.....and they ALWAYS >> did! I don't know if that's the case with FeLV. >> >> I have two young adult cats that are FeLV+, but absolutely no symptoms and >> healthy as a horse! >> >> Natalie >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Gloria B. Lane >> Sent: Wednesday, September 01, 2010 7:30 PM >> To: Feline Leukemia >> Subject: [Felvtalk] faint pos on snap test, neg on IFA >> >> I've been asked about a cat here in Arkansas - a Persian named >> Bicford, that is about 1.5 yrs old, and tested "faint" positive on the >> snap test (Elisa), but negative on the IFA. I gather that means that >> Bicford has been exposed, so has antigens, but doesn't have the virus >> in his blood? I'm confused. >> >> Can someone help me with interpreting what that means? >> >> Thanks, >> >> Gloria >> >> >> _______________________________________________ >> 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 >> > > > _______________________________________________ > Felvtalk mailing list > [email protected] > http://felineleukemia.org/mailman/listinfo/felvtalk_felineleukemia.org > -- Rescuties - Saving the world, one cat at a time. http://www.rescuties.org Vist the Rescuties stores and save a kitty life! http://www.amazon.com/exec/obidos/redirect-home?tag=rescuties-20 http://www.zazzle.com/rescuties* Buy or renew magazines and help our kitties! http://www.magfundraising.com/rescuties Please help Trooper! http://rescuties.chipin.com/trooper "Rather than helping, it's easier to point fingers and say "take them first as long as you leave me alone". _______________________________________________ Felvtalk mailing list [email protected] http://felineleukemia.org/mailman/listinfo/felvtalk_felineleukemia.org
