Re: [Felvtalk] Viral Shedding
Beth - You're explanation makes great sense. Thanks for looking into this. I'll check out the link later on. I think you're right though and it's best to treat any cat that test positive on either test as a positive cat until you get a definite no. Whether they're supposed to be shedding at that point or not it's still better to be safe than sorry. Thanks again for the research and explanation. “I am not interested to know whether vivisection produces results that are profitable to the human race or doesn’t….the pain which it inflicts upon unconsenting animals is the basis of my enmity toward it, and it is to me sufficient justification of the enmity without looking further.” – Mark Twain Date: Wed, 3 Aug 2011 11:17:50 -0700 From: create_me_...@yahoo.com To: felvtalk@felineleukemia.org Subject: Re: [Felvtalk] Viral Shedding I've been looking on line for answers. So take these things with a grain of salt, esp. since I'm not a vet. But then I'm not sure most vets see enough FeLV to really be that knowledgeable about it. What I've been able to understand from what I was able to find: ELISA tests for for FeLV free (unattached to other cells) in the bloodstream. This shows initial infection. The IFA tests for the virus attached to white blood cells (white cells are made in the bone marrow, which is where they pick up the virus) This shows secondary infection, is when the cat starts sheddiing the virus is contagious to other cats. I would treat ANY cat testing positive on Either test as contagious. The article below explains the life stages of the virus.According to this an IFA should ONLY be used after a positive Elisa. An IFA run without an Elisa may miss the initial stage of infection because it is only looking for FeLV in the white blood cells. http://www.lbah.com/feline/felv.html I really wish I was still in school had the time to research write about this subject! Beth Don't Litter, Fix Your Critter! www.Furkids.org From: Maureen Olvey molvey...@hotmail.com To: felvtalk@felineleukemia.org Sent: Wednesday, August 3, 2011 1:15 PM Subject: Re: [Felvtalk] Viral Shedding OMG - way to complicated for me!!! “I am not interested to know whether vivisection produces results that are profitable to the human race or doesn’t….the pain which it inflicts upon unconsenting animals is the basis of my enmity toward it, and it is to me sufficient justification of the enmity without looking further.” – Mark Twain Date: Wed, 3 Aug 2011 10:09:17 -0700 From: create_me_...@yahoo.com To: felvtalk@felineleukemia.org Subject: Re: [Felvtalk] Viral Shedding This link explains what sheeding a virus means. http://en.wikipedia.org/wiki/Viral_shedding Don't Litter, Fix Your Critter! www.Furkids.org From: Natalie at...@optonline.net To: felvtalk@felineleukemia.org Sent: Wednesday, August 3, 2011 10:38 AM Subject: Re: [Felvtalk] doubts on two FeLV positive kitties I think that their immune systems are getting rid of the virus by eating it up, absorbing it, NOT expelling it to infect others. I bet they don't knowI will ask my vet next time I see him -Original Message- From: felvtalk-boun...@felineleukemia.org [mailto:felvtalk-boun...@felineleukemia.org] On Behalf Of Maureen Olvey Sent: Wednesday, August 03, 2011 10:32 AM To: felvtalk@felineleukemia.org Subject: Re: [Felvtalk] doubts on two FeLV positive kitties That's what we're wondering - whether the virus is shed into their saliva while their immune system is still fighting the virus. If the ELISA is positive but the IFA is still negative are the cats able to infect another cat. My book said that when the IFA is positive the cats are able to infect other cats. It didn't say that about when the ELISA is positive but the IFA is negative. It didn't say anything at all about that situation so we're wondering at what point in the progression of the disease is the cat able to infect another cat. Since the ELISA test can use saliva or blood to detect the virus then that means the virus is in the saliva at that point right, and I would think it would be able to infect another cat. But that may not be correct. Maybe the virus can't be spread until it's progressed all the way through the body and has gone into the white blood cells. Maybe once the virus goes into the bone marrow and white blood cells it changes or mutates into a way that makes it contagious. I don't know, it's weird. I guess if the experts don't know then I'll never figure it out either. I am not interested to know whether vivisection produces results that are profitable to the human race or doesn't..the pain which it inflicts upon unconsenting animals is the basis of my enmity toward it, and it is to me sufficient
Re: [Felvtalk] Viral Shedding
This link explains what sheeding a virus means. http://en.wikipedia.org/wiki/Viral_shedding Don't Litter, Fix Your Critter! www.Furkids.org From: Natalie at...@optonline.net To: felvtalk@felineleukemia.org Sent: Wednesday, August 3, 2011 10:38 AM Subject: Re: [Felvtalk] doubts on two FeLV positive kitties I think that their immune systems are getting rid of the virus by eating it up, absorbing it, NOT expelling it to infect others. I bet they don't knowI will ask my vet next time I see him -Original Message- From: felvtalk-boun...@felineleukemia.org [mailto:felvtalk-boun...@felineleukemia.org] On Behalf Of Maureen Olvey Sent: Wednesday, August 03, 2011 10:32 AM To: felvtalk@felineleukemia.org Subject: Re: [Felvtalk] doubts on two FeLV positive kitties That's what we're wondering - whether the virus is shed into their saliva while their immune system is still fighting the virus. If the ELISA is positive but the IFA is still negative are the cats able to infect another cat. My book said that when the IFA is positive the cats are able to infect other cats. It didn't say that about when the ELISA is positive but the IFA is negative. It didn't say anything at all about that situation so we're wondering at what point in the progression of the disease is the cat able to infect another cat. Since the ELISA test can use saliva or blood to detect the virus then that means the virus is in the saliva at that point right, and I would think it would be able to infect another cat. But that may not be correct. Maybe the virus can't be spread until it's progressed all the way through the body and has gone into the white blood cells. Maybe once the virus goes into the bone marrow and white blood cells it changes or mutates into a way that makes it contagious. I don't know, it's weird. I guess if the experts don't know then I'll never figure it out either. I am not interested to know whether vivisection produces results that are profitable to the human race or doesn't..the pain which it inflicts upon unconsenting animals is the basis of my enmity toward it, and it is to me sufficient justification of the enmity without looking further. - Mark Twain Date: Wed, 3 Aug 2011 10:10:37 -0400 From: at...@optonline.net To: felvtalk@felineleukemia.org Subject: Re: [Felvtalk] doubts on two FeLV positive kitties So, does that mean that as positive kittens'/cats' virus is being fought by their immune systems, they are contagious? I have heard vets use the term shedding in this context since the 90s, NOT meaning that they are infectious during that time. What a little word can mean. -Original Message- From: felvtalk-boun...@felineleukemia.org [mailto:felvtalk-boun...@felineleukemia.org] On Behalf Of Beth Sent: Wednesday, August 03, 2011 9:50 AM To: felvtalk@felineleukemia.org Subject: Re: [Felvtalk] doubts on two FeLV positive kitties Shedding a virus means they are contagious. Beth Don't Litter, Fix Your Critter! www.Furkids.org From: Natalie at...@optonline.net To: felvtalk@felineleukemia.org Sent: Wednesday, August 3, 2011 9:19 AM Subject: Re: [Felvtalk] doubts on two FeLV positive kitties Are we talking about two kinds of shedding of the virus? When I say shedding the virus, I mean that as the immune system develops, the body gets rid of the virus. Could it also mean that as the virus infects while shedding? ___ Felvtalk mailing list Felvtalk@felineleukemia.org http://felineleukemia.org/mailman/listinfo/felvtalk_felineleukemia.org ___ Felvtalk mailing list Felvtalk@felineleukemia.org http://felineleukemia.org/mailman/listinfo/felvtalk_felineleukemia.org ___ Felvtalk mailing list Felvtalk@felineleukemia.org http://felineleukemia.org/mailman/listinfo/felvtalk_felineleukemia.org
Re: [Felvtalk] Viral Shedding
OMG - way to complicated for me!!! “I am not interested to know whether vivisection produces results that are profitable to the human race or doesn’t….the pain which it inflicts upon unconsenting animals is the basis of my enmity toward it, and it is to me sufficient justification of the enmity without looking further.” – Mark Twain Date: Wed, 3 Aug 2011 10:09:17 -0700 From: create_me_...@yahoo.com To: felvtalk@felineleukemia.org Subject: Re: [Felvtalk] Viral Shedding This link explains what sheeding a virus means. http://en.wikipedia.org/wiki/Viral_shedding Don't Litter, Fix Your Critter! www.Furkids.org From: Natalie at...@optonline.net To: felvtalk@felineleukemia.org Sent: Wednesday, August 3, 2011 10:38 AM Subject: Re: [Felvtalk] doubts on two FeLV positive kitties I think that their immune systems are getting rid of the virus by eating it up, absorbing it, NOT expelling it to infect others. I bet they don't knowI will ask my vet next time I see him -Original Message- From: felvtalk-boun...@felineleukemia.org [mailto:felvtalk-boun...@felineleukemia.org] On Behalf Of Maureen Olvey Sent: Wednesday, August 03, 2011 10:32 AM To: felvtalk@felineleukemia.org Subject: Re: [Felvtalk] doubts on two FeLV positive kitties That's what we're wondering - whether the virus is shed into their saliva while their immune system is still fighting the virus. If the ELISA is positive but the IFA is still negative are the cats able to infect another cat. My book said that when the IFA is positive the cats are able to infect other cats. It didn't say that about when the ELISA is positive but the IFA is negative. It didn't say anything at all about that situation so we're wondering at what point in the progression of the disease is the cat able to infect another cat. Since the ELISA test can use saliva or blood to detect the virus then that means the virus is in the saliva at that point right, and I would think it would be able to infect another cat. But that may not be correct. Maybe the virus can't be spread until it's progressed all the way through the body and has gone into the white blood cells. Maybe once the virus goes into the bone marrow and white blood cells it changes or mutates into a way that makes it contagious. I don't know, it's weird. I guess if the experts don't know then I'll never figure it out either. I am not interested to know whether vivisection produces results that are profitable to the human race or doesn't..the pain which it inflicts upon unconsenting animals is the basis of my enmity toward it, and it is to me sufficient justification of the enmity without looking further. - Mark Twain Date: Wed, 3 Aug 2011 10:10:37 -0400 From: at...@optonline.net To: felvtalk@felineleukemia.org Subject: Re: [Felvtalk] doubts on two FeLV positive kitties So, does that mean that as positive kittens'/cats' virus is being fought by their immune systems, they are contagious? I have heard vets use the term shedding in this context since the 90s, NOT meaning that they are infectious during that time. What a little word can mean. -Original Message- From: felvtalk-boun...@felineleukemia.org [mailto:felvtalk-boun...@felineleukemia.org] On Behalf Of Beth Sent: Wednesday, August 03, 2011 9:50 AM To: felvtalk@felineleukemia.org Subject: Re: [Felvtalk] doubts on two FeLV positive kitties Shedding a virus means they are contagious. Beth Don't Litter, Fix Your Critter! www.Furkids.org From: Natalie at...@optonline.net To: felvtalk@felineleukemia.org Sent: Wednesday, August 3, 2011 9:19 AM Subject: Re: [Felvtalk] doubts on two FeLV positive kitties Are we talking about two kinds of shedding of the virus? When I say shedding the virus, I mean that as the immune system develops, the body gets rid of the virus. Could it also mean that as the virus infects while shedding? ___ Felvtalk mailing list Felvtalk@felineleukemia.org http://felineleukemia.org/mailman/listinfo/felvtalk_felineleukemia.org ___ Felvtalk mailing list Felvtalk@felineleukemia.org http://felineleukemia.org/mailman/listinfo/felvtalk_felineleukemia.org ___ Felvtalk mailing list Felvtalk@felineleukemia.org http://felineleukemia.org/mailman/listinfo/felvtalk_felineleukemia.org ___ Felvtalk mailing list Felvtalk@felineleukemia.org http://felineleukemia.org/mailman/listinfo/felvtalk_felineleukemia.org
Re: [Felvtalk] Viral Shedding
I've been looking on line for answers. So take these things with a grain of salt, esp. since I'm not a vet. But then I'm not sure most vets see enough FeLV to really be that knowledgeable about it. What I've been able to understand from what I was able to find: ELISA tests for for FeLV free (unattached to other cells) in the bloodstream. This shows initial infection. The IFA tests for the virus attached to white blood cells (white cells are made in the bone marrow, which is where they pick up the virus) This shows secondary infection, is when the cat starts sheddiing the virus is contagious to other cats. I would treat ANY cat testing positive on Either test as contagious. The article below explains the life stages of the virus.According to this an IFA should ONLY be used after a positive Elisa. An IFA run without an Elisa may miss the initial stage of infection because it is only looking for FeLV in the white blood cells. http://www.lbah.com/feline/felv.html I really wish I was still in school had the time to research write about this subject! Beth Don't Litter, Fix Your Critter! www.Furkids.org From: Maureen Olvey molvey...@hotmail.com To: felvtalk@felineleukemia.org Sent: Wednesday, August 3, 2011 1:15 PM Subject: Re: [Felvtalk] Viral Shedding OMG - way to complicated for me!!! “I am not interested to know whether vivisection produces results that are profitable to the human race or doesn’t….the pain which it inflicts upon unconsenting animals is the basis of my enmity toward it, and it is to me sufficient justification of the enmity without looking further.” – Mark Twain Date: Wed, 3 Aug 2011 10:09:17 -0700 From: create_me_...@yahoo.com To: felvtalk@felineleukemia.org Subject: Re: [Felvtalk] Viral Shedding This link explains what sheeding a virus means. http://en.wikipedia.org/wiki/Viral_shedding Don't Litter, Fix Your Critter! www.Furkids.org From: Natalie at...@optonline.net To: felvtalk@felineleukemia.org Sent: Wednesday, August 3, 2011 10:38 AM Subject: Re: [Felvtalk] doubts on two FeLV positive kitties I think that their immune systems are getting rid of the virus by eating it up, absorbing it, NOT expelling it to infect others. I bet they don't knowI will ask my vet next time I see him -Original Message- From: felvtalk-boun...@felineleukemia.org [mailto:felvtalk-boun...@felineleukemia.org] On Behalf Of Maureen Olvey Sent: Wednesday, August 03, 2011 10:32 AM To: felvtalk@felineleukemia.org Subject: Re: [Felvtalk] doubts on two FeLV positive kitties That's what we're wondering - whether the virus is shed into their saliva while their immune system is still fighting the virus. If the ELISA is positive but the IFA is still negative are the cats able to infect another cat. My book said that when the IFA is positive the cats are able to infect other cats. It didn't say that about when the ELISA is positive but the IFA is negative. It didn't say anything at all about that situation so we're wondering at what point in the progression of the disease is the cat able to infect another cat. Since the ELISA test can use saliva or blood to detect the virus then that means the virus is in the saliva at that point right, and I would think it would be able to infect another cat. But that may not be correct. Maybe the virus can't be spread until it's progressed all the way through the body and has gone into the white blood cells. Maybe once the virus goes into the bone marrow and white blood cells it changes or mutates into a way that makes it contagious. I don't know, it's weird. I guess if the experts don't know then I'll never figure it out either. I am not interested to know whether vivisection produces results that are profitable to the human race or doesn't..the pain which it inflicts upon unconsenting animals is the basis of my enmity toward it, and it is to me sufficient justification of the enmity without looking further. - Mark Twain Date: Wed, 3 Aug 2011 10:10:37 -0400 From: at...@optonline.net To: felvtalk@felineleukemia.org Subject: Re: [Felvtalk] doubts on two FeLV positive kitties So, does that mean that as positive kittens'/cats' virus is being fought by their immune systems, they are contagious? I have heard vets use the term shedding in this context since the 90s, NOT meaning that they are infectious during that time. What a little word can mean. -Original Message- From: felvtalk-boun...@felineleukemia.org [mailto:felvtalk-boun...@felineleukemia.org] On Behalf Of Beth Sent: Wednesday, August 03, 2011 9:50 AM To: felvtalk@felineleukemia.org Subject: Re: [Felvtalk] doubts on two FeLV positive kitties Shedding a virus means they are contagious. Beth Don't Litter, Fix Your Critter! www.Furkids.org
