A patient has severe combined immunodeficiency. Which best explains why the patient cannot benefit from immunizations to treat the disease?

Severe combined immunodeficiency is an inherited (genetic) disorder that impairs immune function. Immunizations stimulate acquired immunity by prompting the immune system to respond to a particular antigen; they do not correct the underlying genetic defect. Therefore, the best choice is “Immunizations are used to provoke acquired immunity, so they will not work for genetic diseases.”

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