Blood smear with numerous eosinophils, illustration 插畫檔

Eosinophilia, computer illustration. 360 degree panorama view inside blood vessel with numerous eosinophils. Eosinophils, like all white blood cells, are part of the immune system. They are responsible for combating multicellular parasites and certain infections. Along with mast cells, they also control mechanisms associated with allergy and asthma. They are granulocytes that develop during haematopoiesis in the bone marrow before migrating into the blood. Eosinophilia occurs in parasitic and fungal infections, allergies, autoimmune disorders, tumours.