TABLE 1.
Detection of antibodies to the SARS-CoV in sera from patients with probable SARS by the N13-based antigen-capturing ELISA and the indirect ELISA based on a whole-virus lysate
| Day of sample collection after fever onset | No. of samples | No. (%) of samples positive by:
|
|||
|---|---|---|---|---|---|
| Indirect ELISA
|
Antigen- capturing ELISA | ||||
| IgG | IgM | IgG + IgM | |||
| 12-14 | 7 | 1 (14.3) | 1 (14.3) | 1 (14.3) | 1 (14.3) |
| 15-21 | 25 | 14 (56.0) | 9 (36.0) | 15 (60.0) | 13 (52.0) |
| 22-28 | 60 | 55 (91.7) | 47 (78.3) | 56 (93.3) | 55 (91.7) |
| 29-35 | 96 | 85 (88.5) | 62 (64.6) | 88 (91.7) | 91 (94.8) |
| 36-42 | 51 | 45 (88.2) | 30 (58.8) | 46 (90.2) | 51 (100.0) |
| 43-49 | 26 | 23 (88.5) | 15 (57.7) | 23 (88.5) | 24 (92.3) |
| 50-72 | 15 | 12 (80.0) | 6 (40.0) | 12 (80.0) | 15 (100.0) |
| Total | 280 | 235 (83.9) | 170 (60.7) | 241 (86.1) | 250 (89.3) |