A child has a history of recurring serious bacterial infections. A blood sample shows lymphocyte levels are a little below normal, and no antibodies to the pathogens are detected in serologic tests. Based on this information, which of the following is the likeliest diagnosis for this child?
A) Bruton-type agammaglobulinemia
B) Grave's disease
C) severe combined immune deficiency (SCID)
D) systemic lupus erythematosus (SLE)
E) hemolytic disease of the newborn

Question

Quizplus · Accepted Answer

Bruton-type agammaglobulinemia is characterized by a lack of antibodies due to a defect in B cell development, which aligns with the symptoms described: recurring bacterial infections and no antibodies detected in serologic tests.

A Child Has a History of Recurring Serious Bacterial Infections