How long does the human immune system remember a foreign body?
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Filed under: Alternative Medicine
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When the body is processing blood, it will recognize that a foreign body does not belong there. When the DNA goes through a cycle, it has its ways of paring up with a "partner" which helps make up a double helix and if that pair gets out of whack, your body will recognize it and go into defense mode. When you get a certain vaccine, the body will keep fighting it off and it will succeed.
The immune system can recognize a foreign body for the entire life of the person. This is why people usually only get chicken pox once.
However, sometimes the antibodies that recognize the pathogen get to low levels in the blood, so there aren’t enough antibodies to stop an infection when the person is exposed to the pathogen, so the person must get a booster shot to recharge the immune system against that pathogen.
Different antigens have different strengths, so some vaccines are only required once, while others are required periodically.
Re:strawberry…
-The immune system can recognize antigens in many places, not just in blood.
-The immune system does not attack your DNA if it does not pair correctly; there are DNA repair mechanisms that fix it.
-The immune system can detect foreign DNA, but it usually detects foreign proteins and sugar polymers (on bacteria). The immune system can also detect toxins and modified lipids.