Chronic granulomatous disease Select one: A. is caused by a decrease in the number of phagocytes.   B. can lead to severe combined immunodeficiency.   C. is a genetic disease.   D. is triggered by an autoantibody against phagocytes.   E. is due to a deficiency of B cells and T cells.

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Q: Primary immunodeficiency disorders

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Immunology

Immunology is the division of science involved with the immune reactions occurring in living organisms. The organisms are accustomed to evolving internal defense mechanisms to evade the invasion of microbial pathogens. Diverse cells are connected with stimulating the immune responses, which produce inhospitable conditions to the microbes prompting their lysis and thus inhibits the multiplication of the pathogens. The immune system can distinguish the pathogens through the aid of cellular intercommunication and launch responses to destroy them.