[Felvtalk] Light positive reading

[Maya D'Alessio]

>From a scientific standpoint, it is logical.  It means that there is low
amounts of antigen in the blood, but it is present.

Some of the older tests used to only test for antibodies, well a cat that
has been vaccinated, or exposed ever, is going to have antibodies.

The SNAPP test looks for the actual antigen from the virus, and is thus
much more accurate for actual infection.  If there is a weak positive, it
would mean that there was not very much virus found.  Could be a good sign,
as in the cat is fighting the infection off, or could just mean they were
exposed very recently, or the strain of the virus they have has a much
lower viral load (number of active viral particles in the body).

On Tue, Sep 30, 2014 at 8:57 PM, <dlgegg at windstream.net> wrote:

> IT DOES NOT SOUND LOGICAL TO ME.  EITHER YOU ARE POSITIVE OR NOT.
>
> ---- Kelley S <moonvine at gmail.com> wrote:
> > Hi guys,
> >
> > Long ago I learned from this list, there is no such thing as light
> positive
> > reading.  It indicates an error with the test.  I don't have
> documentation
> > to back this up, can anyone help?
>
>
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>



-- 
Maya D'Alessio
PhD student
B1 377B, x32320
Graduate Studies Endowment Fund Coordinator
Biology GSA Vice Chair
GSA Director At-Large
University of Waterloo
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