Case Report

Prolonged Disease Course of COVID-19 in a Patient with CTLA-4 Haploinsufficiency

Table 3

Lymphocyte subset analysis performed when the patient was 34 years old and had recovered from COVID-19.

Patient’s resultNormal range

T cells (/μL)251700–1900
CD4+ (/μL)117560–1067
CD8+ (/μL)144216–499
CD4/CD8-ratio0.81.4–4.0
Activated T cells (% within CD4)1.00.3–1.0
Naive T cells (% within CD4)15.549.4–71.9
Effector T cells (% within CD4)84.527.3–49.8
Activated T cells (% within CD8)0.60.9–4.2
Naive T cells (% within CD8)13.148.6–87.5
Effector T cells (% within CD8)86.911.7–42.9
B cells (/μL)0114–436
NK cells (/μL)36100–400