MrJohnson Has an Immunodeficiency Disease Called X-Linked Agammaglobulinemia Owing to a Genetic

Mr.Johnson has an immunodeficiency disease called X-linked agammaglobulinemia owing to a genetic defect in a gene called Bruton's tyrosine kinase (Btk) ,which is required for B cell development.He lacks B cells and is therefore unable to produce antibodies.He receives regular injections of gammaglobulin to ensure he has protective immunity against microbial diseases.This is an example of

A) Active immunity
B) Attenuated immunity
C) Subunit vaccination
D) Passive immunity
E) Inactivated immunity

Correct Answer:

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