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Rejection of Substance by Body

  1. Jan 8, 2005 #1
    Is it common to see a human body rejecting a specific substance only because it is foreign to it -- while at the same time, being generally healthy for the human body?
     
    Last edited by a moderator: Jan 8, 2005
  2. jcsd
  3. Jan 8, 2005 #2
    Common???....I'm not sure, but beta-lactam antibiotics in the context of a serious bacterial infection might qualify, as there are so many people allergic to penicillin.
     
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