J
Jamie M
Guest
On 10/23/2014 1:00 AM, Bill Sloman wrote:
don't have to suffer from the other consequences of the infection to
acquire the immunity.
Hi,
The immunity provided by fighting the infection naturally
is not the same as given from a vaccine, which makes sense as
the body is undergoing two separate processes, one a simulated
infection and one real. The level's of re-infection are higher for
people who have been vaccinated than for people who have had the real
infection.
of the antigens which have challenged the immune system.
No it is because the vaccine is a simulated infection, and doesn't
effect the immune system in the same way as a real infection - which
provides longer immunity.
cheers,
Jamie
own immune system, but since they aren't therefore I think my
On Thursday, 23 October 2014 18:48:03 UTC+11, Jamie M wrote:
On 10/21/2014 5:20 PM, Sylvia Else wrote:
On 22/10/2014 8:30 AM, Jamie M wrote:
On 10/21/2014 4:35 AM, Sylvia Else wrote:
On 21/10/2014 8:45 PM, Jamie M wrote:
On 10/21/2014 1:36 AM, Sylvia Else wrote:
On 21/10/2014 5:46 PM, Jamie M wrote:
Hi,
Here's an article on a paper that shows that natural immunity is
superior to vaccine induced "immunity", since the natural immune
response is proven to strengthen the innate immune system:
http://medicalxpress.com/news/2014-10-cd8-cells-virus-theyll.html
"Scientists think of CD8 T cells as long-lived cells that become
tuned
to fight just one pathogen, but a new study finds that once CD8 T
cells
fight one pathogen, they also join the body's "innate" immune system,
ready to answer the calls of the cytokine signals that are set off
by a
wide variety of infections."
"So it may be profitable in vaccine development to try to push CD8 T
cells harder. When CD8 T cells are exposed to the specific virus they
are tuned for, they multiply greatly, a process called expansion."
That last quote shows that vaccine immunity is deficient compared to
natural immunity.
cheers,
Jamie
There are trade-offs, since there's always the danger of provoking an
auto-immune response.
Present vaccines seems to do the job perfectly well, provided enough
people use them. The main beneficiaries of stronger vaccines would be
those who don't vaccinate and rely on herd immunity for protection,
since stronger vaccines would produce a higher degree of herd immunity
for the same proportion of the population who use them.
That is, free-loaders would benefit from the increased risk taken by
the
nonfree-loaders.
Hi,
The article is implying a fundamental deficit in vaccines, which is the
evidence of the CD8 T cells innate immunity benefit from fighting off
an infection. I doubt that vaccines will be able to successfully
create this innate immunity boost any time soon. I am also pretty sure
that the extra CD8 T cells are one of many beneficial things that are
absent in people who are vaccinated.
An argument for vaccines used to be that fighting off an infection
naturally doesn't make you stronger, but it is nice to see that is
actually proven it does make you stronger to naturally fight off
infections, and thus weaker the more vaccines you have.
I think you're misreading the article.
In any case, vaccines trigger an immune response, and the body fights
off the infection. Just that in that particular case, it wouldn't have
mattered if it had done nothing (except that no immunity would have been
conferred).
Hi,
"So it may be profitable in vaccine development to try to push CD8 T
cells harder."
That quote from the article is a diplomatic way of saying the vaccines
are deficient and need further development.
No it isn't. It's merely saying that it may be possible to make them
even better.
Hi,
The immunity that vaccines provide is inferior to the immunity provided
by the bodies immune system successfully fighting off an infection,
Why do you think this? Getting your immunity from vaccination has the definite advantage that you
don't have to suffer from the other consequences of the infection to
acquire the immunity.
Hi,
The immunity provided by fighting the infection naturally
is not the same as given from a vaccine, which makes sense as
the body is undergoing two separate processes, one a simulated
infection and one real. The level's of re-infection are higher for
people who have been vaccinated than for people who have had the real
infection.
This
is why some vaccines require periodic booster shots, and also have only
a fixed amount of time that they will provide immunity.
This has everything to do with the nature of the immune system, and nothing to do with the source
of the antigens which have challenged the immune system.
No it is because the vaccine is a simulated infection, and doesn't
effect the immune system in the same way as a real infection - which
provides longer immunity.
cheers,
Jamie
The immune system isn't clever enough to work out where the antigens have come from.
When you say "make them even better" you are implying they are already better > than the bodies
own immune system, but since they aren't therefore I think my
interpretation is more accurate!
Vaccination merely stimulates the body's own immune system - it doesn't
replace it in any way, so your "interpretation" is simply deluded nonsense.