All of the following may result in an acquired immunodeficiency EXCEPT:
- Inherited defect in B cell maturation
This option refers to a genetic condition rather than an acquired one.
The presentation of a 7-month-old boy with recurrent bacterial infections and oral candidiasis is most consistent with which disorder?
X-linked severe combined immunodeficiency (X-linked SCID)
The infant’s symptoms and family history suggest a genetic immunodeficiency.
Human immunodeficiency virus (HIV) is NOT a:
Herpesvirus
HIV is classified as a retrovirus and a lentivirus.
The partner’s relative “resistance” to HIV infection may be due to a loss-of-function mutation in which protein?
CCR5
CCR5 is a co-receptor that HIV uses to enter cells.
Which of the following is the most commonly known primary immunodeficiency, with a prevalence of 1 in 700 white individuals?
Selective IgA deficiency
This condition is the most prevalent primary immunodeficiency in the population.
