Table 1.
Characteristics of enrolled cases.
| Healthy donors | Delta convalescents (n = 36) | ||
|---|---|---|---|
| SARS-CoV-1 convalescents (n = 10) | Others (n = 39) | ||
| Age | |||
| <18, n (%) | - | - | 8 (22.2%) |
| 18-60, n (%) | 10 (100%) | 39 (100%) | 18 (50%) |
| >60, n (%) | - | - | 10 (27.8%) |
| Gender | |||
| Female, n (%) | 10 (100%) | 15 (38.5%) | 17 (47.2%) |
| Vaccination status | |||
| Unvaccinated, n (%) | 1 (10%) | - | 21 (58.3%) |
| 2 doses, n (%) | 2 (20%) | 21 (53.8%) | 15 (41.7%) |
| 3 doses, n (%) | 7 (70%) | 18 (46.2%) | - |
| Time interval∗ (days) | 55 (55-55) | 163 (54.5-205) | 31.5 (25-35) |
∗Time interval for healthy donors indicates the period between their last vaccination and blood sample collection. For Delta convalescents, it indicates the period between infection and blood sample collection. Data are presented as n (%) or median (IQR).