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#21
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Hepatitis B immunization
CBI wrote:
It is not a live virus so the child will either react or not but has no chance of "not coping." It has been studied and it appears the the young ones do react quite nicely. There is no theory to suggest that the successful reaction, or the unsuccessful ones, present any burden that is harmful in any way. In fact, the way the immune system becomes "strong" is by being challenged so most reasonable theories should suggest that the vaccines are good for the kids. And in fact, there are several studies showing that early vaccinations (by 2 months or so) lead to fewer immune system problems (most notably less likelihood of atopic disease), with the theory being that the early vaccinations exercise the immune system in a good way so as to beneficially affect the development of T cells. Best wishes, Ericka |
#22
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Hepatitis B immunization
In ,
Ericka Kammerer wrote: *CBI wrote: * * * It is not a live virus so the child will either react or not but has no * chance of "not coping." It has been studied and it appears the the young * ones do react quite nicely. There is no theory to suggest that the * successful reaction, or the unsuccessful ones, present any burden that is * harmful in any way. In fact, the way the immune system becomes "strong" is * by being challenged so most reasonable theories should suggest that the * vaccines are good for the kids. * * * And in fact, there are several studies showing that early *vaccinations (by 2 months or so) lead to fewer immune system problems *(most notably less likelihood of atopic disease), with the theory *being that the early vaccinations exercise the immune system in *a good way so as to beneficially affect the development of T cells. * Hee hee. I just like the idea of exercising the immune system. I am picturing lymphocytes lifting barbells and neutrophils punching punching bags full of bacteria. hee hee hee. -- hillary israeli vmd http://www.hillary.net "uber vaccae in quattuor partes divisum est." not-so-newly minted veterinarian-at-large |
#23
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Hepatitis B immunization
Hillary Israeli wrote:
In , Ericka Kammerer wrote: * And in fact, there are several studies showing that early *vaccinations (by 2 months or so) lead to fewer immune system problems *(most notably less likelihood of atopic disease), with the theory *being that the early vaccinations exercise the immune system in *a good way so as to beneficially affect the development of T cells. Hee hee. I just like the idea of exercising the immune system. I am picturing lymphocytes lifting barbells and neutrophils punching punching bags full of bacteria. hee hee hee. Yes, that's sort of my image too and I find it rather amusing ;-) And really, it makes a certain amount of sense to me as well. Best wishes, Ericka |
#24
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Hepatitis B immunization
abacus wrote:
Ericka Kammerer wrote in message ... And in fact, there are several studies showing that early vaccinations (by 2 months or so) lead to fewer immune system problems (most notably less likelihood of atopic disease), with the theory being that the early vaccinations exercise the immune system in a good way so as to beneficially affect the development of T cells. Interesting, I haven't seen such studies. It's an interesting line of research. Things aren't conclusive yet by any means, but it's related to the "hygiene hypothesis" line of research into atopic disease. The basic idea is that one of the factors theorized to have led to the increased prevalence of atopic disease, particularly in more developed areas, is that hygiene is too good, leading to fewer childhood infections. When babies are born, they have immature T helper cells. Fairly early in life, they begin to differentiate into Th-1 or Th-2 types of cells. If the balance is tipped too far towards Th-2 cells, the incidence of atopic disease is increased. While a number of factors can influence this distribution, certain kinds of infections are helpful in stimulating strong Th-1 responses. It is theorized that the right sort of vaccinations can do the same--with less risk than exposing infants to serious infections. Time does seem to be significant. If this process doesn't start early enough, you may miss the window of opportunity for affecting the balance of Th-1 and Th-2 cells. From what I've read, there seems to be a mounting pile of evidence along several streams that are supportive of these theories. I don't think anyone suggests that this is the *only* factor involved, but it does seem to help explain many things and there's a plausible physiological mechanism. Best wishes, Ericka |
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