試題詳解

23. Which of the following statements about immunodeficiency are correct? (Select all that apply.)
(A) Patients lacking complement components C5-C9 are more susceptible to influenza virus infections.
(B) Individuals with phagocyte defects are more prone to bacterial infections but not more susceptible to viral infections.
(C) People with T cell deficiencies are prone to opportunistic infections.
(D) Individuals with IgA deficiency have an increased risk of respiratory tract infections.
(E) Genetic defects are the only cause of immunodeficiency.