And if a strain is not contagious how is it spread ???
Tad
Chris wrote:
OK-- so what you're saying is that depending on the strain of FELV, it is
NOT contagious? If so, then it really puts into question the tests
routinely used? What tests could be used to determine the strain?
Chris
[EMAIL PROTECTED]
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf
Of Ong Meo
Sent: Wednesday, December 08, 2004 12:26 PM
To: [EMAIL PROTECTED]
Subject: Re: contagiousness of FELV and other thoughts.../strain
----- Original Message -----
From: "Gloria B. Lane" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, December 08, 2004 9:03 AM
Subject: Re: contagiousness of FELV and other thoughts.../strain
I appreciate the thoughtfulness of what you've written so much. I've
mixed FELV with negatives, no prob. But always a question - shudder.
Have wondered for some time about strains. Does anybody know if
there's an available test for the strain of FELV?
Gloria
Hi Gloria,
I'm new to the group; I hope you don't mind if I butt in.
The differences in the outcome of FeLV infection can be attributed to
differences in virus subgroups that may be considered strains. FeLV-A,
FeLV-B, and FeLV-C.
Only FeLV-A is transmitted contagiously among cats. FeLV-B or -C are
generated de novo by recombination between endogenous FeLV sequences and the
infecting FeLV-A. FeLV-B and FeLV-C are not transmitted contagiously among
cats in nature. The subgroups are determined by viral interference assays.
These are highly specialized tests and usually available only in research
and specialized diagnostic labs.
FeLV-A occurs in all FeLV-infected cats and causes severe immunosuppression
(weakened immune system).
FeLV-B occurs in about 50% of all FeLV-infected cats and causes more
neoplastic disease (i.e., tumors and other abnormal tissue growths) than
cats infected only with FeLV-A.
FeLV-C occurs in about 1% of FeLV-infected cats and causes severe anemia.
hth,
Ong
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