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Type I hypersensitivity and Eosinophils

Early phase mediators are released from mast cells and basophils. One of these mediators is called the Eosinophil chemotactic factor A which will attract eosinophils into the area.
Eosinophils will then release the late phase mediators such as PGE2 and Leukotrienes. Late phase response is much more powerful than the early phase.
 
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