Eosinophils are a type of white blood cell that play a key role in the body’s immune response, particularly in fighting parasitic infections and in allergic reactions. They are part of the body’s immune system and are produced in the bone marrow. Eosinophils can be measured through a blood test, often as part of a complete blood count (CBC).

  • High Levels of Eosinophils (Eosinophilia): Can indicate allergic reactions, parasitic infections, autoimmune diseases, and certain types of leukemia or other health conditions.
  • Low Levels of Eosinophils: Generally not a concern and can occur with the use of certain medications, like corticosteroids, or during acute infections.

Eosinophils

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