this is all that i know, but wouldn't it be wonderful....

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From: Cat Health News from the Winn Feline Foundation <
Date: Mon, Mar 31, 2008 at 7:14 PM
Subject: Cat Health News from the Winn Feline Foundation

   Cat Health News from the Winn Feline
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Link to Cat Health News from the Winn Feline

New FIV Test 

Posted: 31 Mar 2008 08:00 AM CDT
*Levy, J. K., P. C. Crawford, et al. (2008). "Differentiation of feline
immunodeficiency virus vaccination, infection, or vaccination and infection
in cats." J Vet Intern Med 22(2): 330-4.*

Diagnosis of feline immunodeficiency virus (FIV) is complicated by the fact
that no commercially available tests can differentiate between naturally
infected cats and cats that have been vaccinated against FIV. After
vaccination, cats produce antibodies that to date have been
indistinguishable from those induced by natural infection. A discriminant
enzyme-linked immunosorbent assay (ELISA) was developed that detects
antibodies against formalin-treated FIV whole virus and untreated
transmembrane peptide. In this study, blood samples from 73 uninfected and
unvaccinated cats, 89 uninfected FIV-vaccinated cats, 99 unvaccinated
FIV-infected cats, and 3 FIV-infected and vaccinated cats were tested. The
discriminate ELISA correctly identified all uninfected cats, giving a
specificity of 100%. Of the FIV-infected cats, 99 were correctly identified,
giving a sensitivity of 97.1%. Other than virus isolation, which is not
widely available and is time-consuming and expensive, this discriminate
ELISA is the most reliable test for diagnosis of FIV. When this test becomes
available at referral diagnostic laboratories, a new strategy for FIV
testing would be to use the existing patient-side antibody assay as a
screening test, and confirm positive results with the discriminant ELISA.
>> PubMed 
>> abstract<>

*Related articles:
*Kusuhara, H., T. Hohdatsu, et al. (2007). "Serological differentiation of
FIV-infected cats from dual-subtype feline immunodeficiency virus vaccine
(Fel-O-Vax FIV) inoculated cats." Vet Microbiol 120(3-4): 217-25.
>> PubMed 
>> abstract<>

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