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Seroprevalence of anti-SARS-CoV-2 antibodies in qRT-PCR-positive and qRT-PCR-negative individuals.
| All individuals | qRT-PCR+ | qRT-PCR− | p-value | |
|---|---|---|---|---|
| IgG | 87/304 (28.7%) | 8/15 (53.3%) | 79/289 (27.3%) | 0.040 |
| IgM | 38/304 (12.5%) | 2/15 (13.3%) | 36/289 (12.5%) | 0.99 |
| Neutralizing Ab | 50/109 (45.8%) | 3/8 (37.5%) | 47/101 (46.5%) | 0.72 |
The seroprevalence of anti-SARS-CoV-2 Ab was compared between qRT-PCR-positive and qRT-PCR-negative groups using the Fisher exact test. Ab: antibody
