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Prospective cohort COVID-19 cases and contact persons by antibody status
| Antibody positive (n = 29) | Antibody negative (n = 46) | |
|---|---|---|
| Female/male | 14/15 | 28/18 |
| Age (years, mean ± SD) | 44 ± 13.2 | 39 ± 16.8 |
| Cases by classification | ||
| Confirmed (n) | 13 | 0 |
| Probable (n) | 15 | 8 |
| Asymptomatic (n) | 1 | 38 |
