Table 5.
Range and median values of anti SARS-CoV-2 IgA-S1 and anti SARS-CoV-2 IgG-RBD antibody levels in nasal secretions in subjects with previous COVID-19 mild infection vs. subjects with previous severe infection that required hospitalization.
| NASAL SECRETIONS OF COVID-19 SUBJECTS | ||||
|---|---|---|---|---|
| Population | Median | Range | Dilution | |
| IgG-RBD | Mild or pauci-symptomatic infection | 0.70 BAU/ml | 0.57–3.25 BAU/ml | No dilution |
| Severe infection | 6.46 BAU/ml | 2.17–7.59 BAU/ml | No dilution | |
| IgA-S1 | Mild or pauci-symptomatic infection | 5.78 COI | 1.44–38.90 COI | 1:2 |
| Severe infection | 61.50 COI | 17.24–90.00 COI | 1:2 | |