Re: positive

Fri, 21 Apr 2006 11:58:40 -0700

Nothing is 100%.  No test is always accurate.  The IFA is just more accurate than the ELISA.
 
If the cat appears healthy but tests positive don't worry about it. Do you have a stable population -- no new cats coming in and anyone who could be exposed has already been exposed?  If so, then just let things be.  I would vaccinate anyone who tests negative but I wouldn't suddenly separate positive and negative cats, nor would I euthanize a cat who seemed healthy and happy just because a  test came back positive.  (Oh, and the vet who recommended euthanizing the first ones who tested positive -- if you haven't already done so, get a new vet.  I would also likely dump a vet who had me retest month after month, all with the ELISA test.)

hd cc <[EMAIL PROTECTED]> wrote:
Sad, I euthanized the first one that showed positive, once more started showing positive
I decided to wait and not euthanize any! But now I feel soooo bad and soooo guilty having
her put down,SHAME ON ME, I didnt know. I want to cry 8-((
Yes they are all elisa test Working on IFA test monday. IF the IFA test is positive is that
A FOR SURE? If it is negative what does that mean?
 
Carrie
----- Original Message -----
Sent: Friday, April 21, 2006 11:52 AM
Subject: Re: positive

No test is 100% accurate.  Are you using ELISA or IFA? The ELISA test is far less accurate, has a much higher number of falses positives.  I'm sure you can get false negatives too.  Also, it is possible to get a negative on a blood test if the virus is in the bone marrow.  (I have very little faith in the ELISA test, especially where a cat is very young or very old, or is ill or otherwise stressed.)

hd cc <[EMAIL PROTECTED]> wrote:
THIS IS GOOD NEWS, I HOPE YOUR RIGHT!
My cats are adults, healthy, vaccinated and vaccinated.
This makes no since! 2 are at a year old and tested both neg
one tested neg in dec 27th, now positive.......
Whatever has happened here has happened in the
last 3 months, this is how current it is that I know of, SO
with that said I have some hope, especially with my adult
cat 3 years old I think, maybe 4, he is BIG healthy and strong
No reason for this!
 
The one I put to sleep has been tested 5 times
ALL neg and now positive! Her momma was FIV so when she was little
she to tested positive for FIV, every month I tested her, at 6 months her
and her sister were neg. Now her sister is still Neg for both and she is FELV
positive, my vet cant even make since out of this at all, no one knows what to think
I just know it has just recently started, no mating, no fighting

Carrie
----- Original Message -----
Sent: Friday, April 21, 2006 10:20 AM
Subject: Re: positive

yeah, well, that IS the question....
 
70% of adult, healthy cats can be exposed to the virus and throw it off--it's generally believed to take 90-120 days for that to happen if it's gonna. therefore, unless you know EXACTLY where (and with whom!) the cat has been in the previous 90-120 days, you can't really believe either a negative OR a positive result.... this means that cats who have been exposed, but will throw off the virus, will be killed in the shelters/rescues/vet's offices because they don't have either the information or the facilities to hold the kitty for retesting; if also means that a stray from the streets who tests negative may still have been exposed in the recent past and may test positive later on....
 
even cats tested positive on the ifa can retest negative after a time--i'd found a reference once, tho it's no longer where it was originally!--that in rare cases the time for an IFA to go back to negative was up to 7 months following exposure.
 
i have never heard of a documented case of a vaccinated negative cat turning positive from living, closely, with positives....
 
i do know of a number of cats who originally tested positive (back before people knew to retest) who did indeed test negative months and even years after they'd gone to live in positive-only environments--so clearly, they were healthy enough to throw the initial exposure off, and to remain negative afterward. one specific cat in that category went through two major bouts of illness that were considered life-threatening--to the force-feeding stage--and the little brat bounced back from both those episodes, stayed in the FeLV colony, and two years later, was found to be negative after all...
 
 


 
On 4/20/06, carrie chance <[EMAIL PROTECTED] > wrote:
what the heck good is testing and vaccinating then?
----- Original Message -----
Sent: Thursday, April 20, 2006 6:20 PM
Subject: RE: positive

 
I hasn't happened to me – but statistically it's supposed to have 2/3 of cases – might it might take a few months to really know it, though.
 
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of hd cc
Sent: Thursday, April 20, 2006 3:50 PM
To: Felvtalk@felineleukemia.org
Subject: positive
 
Okay anyone ever have a positive turn negitive?
or am I screwed!
 
 
Sincerely
Carrie

 



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