If what you say is true - that immunity conferred by getting the disease is permanent - then WHY do people that have had chickenpox still get shingles? That's a virus also. I don't think you can find real evidence that immunity is permanent. Read Hanson's book on immunobiology. He says that over a long period of time, immunity wanes unless restimulated by exposure to the viral agent again.
-----Original Message-----
From: Lactation Information and Discussion [mailto:[log in to unmask]] On Behalf Of Sam Doak
Sent: Wednesday, November 11, 2009 8:34 AM
Subject: Re: The immune response to flu/vaccination
I believe it would depend on the comprehensiveness of the vaccine. If the vaccine is missing components of the virus, the body may or may not produce the correct antibodies to the offending virus. There has been talk that the
H1N1 is a combination of 4 different viruses - not sure if this is accurate or not, but it seems to be flying in the "government caused hysteria"
communities.
I'm thinking the IgG (or is it A?) provides a coating which basically helps viruses slide down into the digestive tract to be destroyed by acid or base (depending on how far into the GI system the virus moves). So, it may not be that the baby develops specific antibodies at all, it may be that the immune system is able to move the virus through the waste system before it can attack the baby.
Either way, the immunity to the baby is temporary. If the mother gets the flu, her immunity should be permanent. Not true for the vaccine.
Best wishes,
Sam Doak
Marietta OH
<<
Dear all,
The new flu is a hot issue and gets a lot of coverage in the Dutch newspapers.
One of my colleagues has a very specific question with regard to immune response.
He will have a couple of statements in a national newspaper tomorrow and wants to underpin what he says and we thought was obvious, but is questioned by someone else.
Here we go: if a mother gets the flu, she will produce antibodies, specific antibodies.
Does breastfeeding convey general immune factors or does it also transfer these specific sub-groups of IgG-antibodies?
And is there a difference between a mom who gets the flu and a mom who gets the vaccination?
Will both situations have the same effect on her antibody response and will she have those specific antibodies in her milk?
Of course: breastfeeding protects, but is it the general protection that helps or is it specific protection, tailored to this specific flu that will get into that breastfed babe?
I find it quite hard to fully grasp it in all its intricate detail and will (as Gonneke suggested on another list... hahaha) definitely try and get my hands on Hanson's book.
I'm not there yet, though, and would love to hear from you whether you can point us to some kind of explanation that might be used for the larger, more ignorant public as well.
Thanks in advance, for your swift and knowledgeable input! :-)
Warmly,
Marianne Vanderveen IBCLC, Netherlands>>
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