Which of the following white blood cells are primarily involved in combating allergic reactions?

Eosinophils are the white blood cells primarily involved in combating allergic reactions. These cells play a crucial role in the immune system by responding to allergens and parasites. When an allergic reaction occurs, the body releases certain substances, such as allergens that trigger an immune response. Eosinophils are recruited to the site of the allergic reaction, and they help to mitigate the effects of allergens by releasing inflammatory mediators, such as histamines and other substances that contribute to the inflammatory response.

In particular, eosinophils are vital in managing the body's reactions to parasitic infections and also in regulating responses to allergens. Their presence can indicate the severity of an allergic reaction or condition, such as asthma or rhinitis.

Understanding the function of eosinophils in the immune system provides insight into how the body responds to allergens, and highlights their importance in both allergic reactions and certain inflammatory conditions.