_______ is an Example of the Immune System Overreacting to Mild

Question

_______ is an example of the immune system overreacting to mild antigens.
A) HIV
B) Cancer
C) Autoimmune disease
D) Allergic reaction

Accepted Answer

An allergic reaction is when the immune system overreacts to normally harmless substances (allergens) such as pollen, dust, or certain foods. The immune system produces an excessive amount of antibodies which can cause symptoms such as inflammation, itching, and swelling.