No.  One can never know for sure.  I didn't say that to scare you.  It's just how I've come to think of it in my situation.  All my cats are rescues.  They all tested negative, but I wouldn't be surprised if someone had it sequestered and came up positive in the future.  I think if they were going to 'catch' it from a positive, that would have happened when I mixed in my first positive (unknowingly from a test that someone made a mistake with).  Since mine hadn't caught it from her after having been mixed for months I continued to let them mix.
 
tonya

Hideyo Yamamoto <[EMAIL PROTECTED]> wrote:

Most of my cats were never been at a shelter, I trapped them directly from each colony, and I have been taking care of them for the past few years  � I sort of know which colony has which virus � as you do see a sort of pattern, but I guess I will not know for sure of anything �

 

 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of catatonya
Sent: Monday, February 21, 2005 3:20 PM
To: [email protected]
Subject: RE: bone marrow test

 

But.....how do you know that none of your other cats is already carrying it in their bone marrow?  If a cat has been in a shelter, been in the wild, been in a home with many cats..... chances are it has at sometime been exposed......

 

t

Hideyo Yamamoto <[EMAIL PROTECTED]> wrote:

Well � I am not sure if I am really going to pursuit or not  � but if I catch Ginger�s mama, I think I want to try to keep her in stead of releasing her (she is a feral kitty) � she looks really good, but if she tested negative on FeLV, I feel that I need to know if she is really negative as I may have to consider the possibility of keeping her with other negative kitties � but I know that kitties can be negative on blood test, but positive on bone marrow (it happened to one of my friend�s kitty) -

 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Cherie A Gabbert
Sent: Monday, February 21, 2005 2:37 PM
To: [email protected]
Subject: RE: bone marrow test

 

Who would you want to get that done on? Your positive kitty or negative?

Cherie

Hideyo Yamamoto <[EMAIL PROTECTED]> wrote:

 

Does anyone know how invasive it is to do bone marrow level testing on FeLV?

 

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