Table 1. The total IgG and IgM antibody positive rate of SARS-CoV-2 in different provinces in mainland China.
| Number of persons tested | IgG positive persons | IgM positive persons | Total antibody positive persons | IgG positive rate (%) | IgM positive rate (%) | Total antibody positive rate (%) | |
|---|---|---|---|---|---|---|---|
| Hubei | 49,257 | 382 | 102 | 412 | 0.78 | 0.21 | 0.84 |
| Henan | 3,956 | 18 | 3 | 19 | 0.46 | 0.08 | 0.48 |
| Hunan | 1,312 | 5 | 1 | 5 | 0.38 | 0.08 | 0.38 |
| Anhui | 844 | 2 | 2 | 3 | 0.24 | 0.24 | 0.36 |
| Sichuan | 803 | 5 | 1 | 5 | 0.62 | 0.12 | 0.62 |
| Shaanxi | 790 | 2 | 0 | 2 | 0.25 | 0.00 | 0.25 |
| Jiangxi | 708 | 6 | 2 | 6 | 0.85 | 0.28 | 0.85 |
| Jiangsu | 683 | 1 | 0 | 1 | 0.15 | 0.00 | 0.15 |
| Shandong | 582 | 1 | 0 | 1 | 0.17 | 0.00 | 0.17 |
| Guizhou | 573 | 1 | 0 | 1 | 0.17 | 0.00 | 0.17 |
| Hebei | 434 | 0 | 1 | 1 | 0.00 | 0.23 | 0.23 |
| Gansu | 375 | 1 | 0 | 1 | 0.27 | 0.00 | 0.27 |
| Chongqing | 359 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 |
| Yunnan | 321 | 1 | 0 | 1 | 0.31 | 0.00 | 0.31 |
| Shanxi | 309 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 |
| Other provinces | 1,801 | 7 | 1 | 7 | 0.39 | 0.06 | 0.39 |
| Total | 63,107 | 432 | 113 | 465 | 0.68 | 0.18 | 0.74 |
Note: the samples of provinces with less than 300 healthy persons each were all summarized together as other provinces because the small sample size may generate bias on seroprevalence.