[Felvtalk] ELISA & IFA Tests:
khargreaves at gmail.com
Mon Feb 6 17:43:51 CST 2012
>From what I know, there are four:
Is this correct?
On Mon, Feb 6, 2012 at 4:28 AM, Lynda Wilson <longhornfans at verizon.net> wrote:
> First of all there are two commonly used types of FeLV tests. One is the
> in-office ELISA and the other is the laboratory run IFA test. Both types
> test for the FeLV protein p27. However, they detect the protein in different
> forms and detect infection at different stages. 1.) If a cat or kitten is
> ELISA positive, but healthy, an IFA test should be performed. Here is where
> the confusion begins.
> If the cat is IFA negative but ELISA positive there are two possibilities.
> One is a false positive ELISA test and the other is a stage of the disease
> is present at which the IFA test doesn't detect infection. Therefore the
> suspect cat or kitten should be isolated and retested in at least 6 weeks.
> If, at that time the cat is IFA positive, you know that the cat if infected.
> The IFA is 99% accurate. An IFA positive cat can be shedding virus and
> infect other cats and kittens."
> Remember to retest 6 weeks after an ELISA positive result, the cat's immune
> system can clear the virus especially in an adult cat (kittens and seniors
> have the most difficulty clearing the virus).
> This is what I have always been told by veterinarians and everyone on this
> FeLV thread. I have not heard any different. This info is true!
> Felvtalk mailing list
> Felvtalk at felineleukemia.org
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