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Contact to COVID-19 cases reported by the study participants.
| Total | Seropositive, n (%) | p | |
|---|---|---|---|
| Any known contact | 417 | 18 (4.3) | <0.001 |
|
226 | 5 (2.2) | 0.79 |
|
69 | 6 (8.7) | 0.001 |
|
140 | 3 (2.1) | 0.74 |
|
35 | 4 (11.4) | 0.003 |
Contact to COVID-19 cases reported by seropositive and -negative study participants and association of variables between seropositive and seronegative individuals. Information on contact to COVID-19 cases was available for 1163 study participants.
