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IgG ELISA results as a function of self-reported prior SARS-CoV-2 diagnostic test outcome among returning student cohort participants.
| Prior test | ||||
|---|---|---|---|---|
| Prior positive | No prior positive | Awaiting results | No prior test | |
| (N = 107) | (N = 550) | (N = 16) | (N = 52) | |
| ELISA result | ||||
| Positive | 95 (88.8%) | 102 (18.5%) | 3 (18.8%) | 8 (15.4%) |
| Negative | 7 (6.5%) | 419 (76.2%) | 13 (81.3%) | 37 (71.2%) |
| Missing | 5 (4.7%) | 29 (5.3%) | 0 (0%) | 7 (13.5%) |
