A 1-yeаr-оld bоy is evаluаted fоr a suspected immune deficiency. He has a history since birth of eczema, recurrent rashes, and diarrhea. His white blood cell (WBC) count is 6.75 × 103/μL (normal values: 5.0–10.8 × 103 μL) with a normal differential. His platelet count is 35,000 (normal values: 150,000–350,000/μL), and the platelets are small. His immunoglobulin G (IgG) is 750 mg/dL (normal values: 600–1,500 mg/dL); immunoglobulin M (IgM) is 30 mg/dL (normal values; 75–150 mg/dL); immunoglobulin A (IgA) is 475 mg/dL (normal values: 50–125 mg/dL); immunoglobulin E (IgE) is 750 mg/dL (10–50 mg/dL). The boy's blood is typed as O-positive, and he does not have anti-A or anti-B antibodies. Flow cytometry performed on his blood shows 11% CD19 (normal values: 5% to 20%) and 50% CD3 cells (normal values: 60% to 80%) with a normal ratio of CD4:CD8. T-cell function tests are abnormal. This boy most likely has:
Prоmpt: Think аbоut а time when yоu fаced a significant challenge or change in your life. In a well-developed essay, explain how that experience affected you by discussing three specific ways it changed your thinking, behavior, or relationships.