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These are known as opsonins or alexins, and they act on the bacteria by a process comparable to narcotisation, and render them an easy prey for the phagocytes. Artificial or Passive Immunity. A form of immunity can be induced by the introduction of protective substances obtained from an animal which has been actively immunised. The most important of these antibodies are the antitoxins.
Science has named these defensive proteins ~alexins.~ It has also been found that the phagocyte and tissue cells in the neighborhood of the area of irritation produce antipoisons or natural antitoxins, which neutralize the bacterial poisons and kill the microorganisms of disease. With the Evil, Nature Provides the Cure
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