Table 4 Humoral response of subjects based on the presence of COVID-19 symptoms before booster dose administration
Humoral response | Symptomatic (n = 18) | Asymptomatic (n = 20) | p value |
|---|---|---|---|
Increasing IgG sRBD | 16 (88.9%) | 16 (80.0%) | 0.663 |
Increasing NAbs | 16 (88.9%) | 16 (80.0%) | 0.663 |
IgG sRBD Ratio V4 to V3 | 1.45 (IQR 0.27–11.74) U/mL | 0.12 (IQR 0.02–0.05) U/mL | 0.006 |