Which is caused by a virus that primarily infects a specific subset of T lymphocytes, the CD4+ T cells?
a. Wiskott-Aldrich syndrome
b. Idiopathic thrombocytopenic purpura
c. Acquired immunodeficiency syndrome (AIDS)
d. Severe combined immunodeficiency disease
ANS: C
AIDS is caused by the human immunodeficiency virus (HIV), which primarily attacks the CD4+ T cells. Wiskott-Aldrich syndrome, idiopathic thrombocytopenic purpura, and severe combined immunodeficiency disease are not viral illnesses.
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