>From what I know, there are four:

In-house ELISA
Lab ELISA
Lab IFA
PSA

Is this correct?

On Mon, Feb 6, 2012 at 4:28 AM, Lynda Wilson <longhornf...@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!
>
>
> Lynda
>
>
>
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