I have always had this 'weird' thought (But could never quite test it...). Would the saliva contain antibodies, or other immuno-boosting substances that can help fight off the same pathogen in another person? If yes, is the concentration (dose) of them in saliva enough to have any considerable effect directly (without any further artificial concentration or extraction done)?

  • This is indeed a very interesting question, and I'm greatly looking forward to the answer Jul 9, 2017 at 13:04
  • @TheEnvironmentalist Thanks but sadly no one gives a fxxk haha. Maybe somebody can help to migrate it to Bio SE?
    – y chung
    Jul 11, 2017 at 13:48


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