Which type of white blood cell primarily responds to parasitic infections?

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Eosinophils are specialized white blood cells that play a crucial role in the immune response, particularly in combating parasitic infections. These cells are characterized by their ability to release cytotoxic granules that contain proteins and enzymes effective against larger parasites, such as helminths (worms). The presence of eosinophils increases during parasitic infections, as they actively migrate to sites of infection to participate in the immune response. Their activation leads to the release of substances that can damage the membranes of parasites, promoting their destruction and clearance from the body.

In addition to their role in fighting parasites, eosinophils are also involved in allergic reactions and asthma. However, their distinctive function in targeting parasites makes them the primary responders in this context. Therefore, recognizing eosinophils as key players in the response to parasitic infections is essential for understanding the immune system's specialized mechanisms.

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