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To: elmatador who wrote (53297)8/8/2009 7:13:03 AM
From: Gib Bogle1 Recommendation  Read Replies (4) of 217873
 
Actually Elmat it's all about what pathogens your immune system has been exposed to. You develop a relatively bigger population of lymphocytes (B and T cells) specific for, i.e. capable of recognizing and combatting, those pathogens to which you have been exposed. This expansion of cognate cells, called memory cells, is the basis of innoculation. In different regions people are routinely exposed to different sets of pathogens as they grow up, and therefore have a different repertoires of resistance. So you are partly correct, but when your dirty Latino meets a bug significantly different from those he's been exposed to, he's just as vulnerable as anyone else. This is why the indigenes of the Americas and of the Pacific were devastated by bugs that were not very dangerous to the Europeans who brought them.
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