Table 2 Seroprevalence and COVID testing at enrollment and visits 2 and 3
From: Medical education during the COVID-19 pandemic: a reflection on the JHUSOM experience
|  | 1st blood samplea (%)N = 224 | 2nd blood sampleb (%)N = 119 | 3rd blood samplec (%)N = 38 |
|---|---|---|---|
Seroprevalence | |||
Unvaccinated + IgG negative | 209 (93.3) | 48 (40.3) | 1 (2.6) |
Unvaccinated + IgG positive | 6 (2.7) | 11 (9.3) | 2 (5.2) |
Vaccinated + IgG negative | 0 (0.0) | 0 (0.0) | 0 (0.0) |
Vaccinated + IgG positive | 9 (4.0) | 60 (50.4) | 35 (92.2) |