Table 1.
Test results of serum antibodies in pediatric medical workers exposed to different levels of SARS-CoV-2.
| DTFA |
ELISA |
Colloidal Gold Detection |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Total positive rate of IgG% | Total positive rate of IgM (%) | rN-IgG | rRBD-IgG | Total positive rate of IgG (%) | rN-IgG | rN-IgG positive rate (%) | rRBD-IgM | rRBD-IgM positive rate (%) | IgG positiverate (%) | IgM positive rate (%) | |
| All participants | 43.08 (140/325) |
5.85 (19/325) |
1076.52±1153.14 | 738.42±988.99 | 30.25 (98/324) |
0.13±0.16 | 24.31 (79/325) |
0.06±0.04 | 5.23 (17/325) |
0.00 (0/325) |
0.62 (2/325) |
| Close contact group | 58.12 (111/191) |
9.42 (18/191) |
1308.98±1323.92 | 958.49±1188.43 | 41.36 (79/191) |
0.16±0.20 | 34.55 (66/191) |
0.06±0.05 | 8.38 (16/191) |
0.00 (0/191) |
1.05 (2/191) |
| Non-close contact group | 22.73 (25/110) |
0.91 (1/110) |
784.02±791.23 | 434.45±463.47 | 14.68 (16/109) |
0.08±0.06 | 10.91 (12/110) |
0.06±0.04 | 0.91 (1/110) |
0.00 (0/110) |
0.00 (0/110) |
| Non-contact group | 16.67 (4/24) |
0.00 (0/24) |
587.58±362.93 | 385.63±282.21 | 12.50 (3/24) |
0.07±0.04 | 4.17 (1/24) |
0.05±0.02 | 0.00 (0/24) |
0.00 (0/24) |
0.00 (0/24) |
| F or χ2 | 43.02 | 10.80 | 10.28 | 12.35 | 27.29 | 9.95 | 26.93 | 1.36 | 9.28 | – | 1.41 |
| p | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.26 | 0.01 | – | 0.49 |