Fig. 1.

Percent of serum samples (collected from patients with a positive NAAT test for SARS-CoV-2) with detectable total antibody to SARS-CoV-2 by Genalyte Maverick and Roche Elecsys assays. The bar graph shows percent antibody positive serum samples collected 3-4 days, 5-6 days, 7-8 days, 9-10 days, 11-12 days, or 13-14 days after onset of symptoms. Samples collected ≥15 days from either symptom onset or the date of NAAT testing are also shown. The number of samples included in each symptom onset category is included above the bars in the graph.