Figure 2. Quantitative analysis of anti-SARS-CoV-2 IgM and IgG antibodies by participant group [upper left, upper right] and by time of symptom onset [lower left, lower right]. Between participant groups differences [upper left, upper right]: p<0.001 for both IgM and IgG test. For time of symptom onset lower left, lower right]: p=0.083 for IgM, p=0.022 for IgG.
