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. 2020 Nov 26;11:603931. doi: 10.3389/fmicb.2020.603931

FIGURE 3.

FIGURE 3

Levels of antibodies against SARS-CoV-2 at different times after symptom onset. (A) Level of anti-S1 IgG (median = 6 AU/mL and 13 AU/mL for day < 7 and days 7–13, respectively). (B) Level of anti-N IgG (median = 11 AU/mL and 60 AU/mL for day < 7 and days 7–13, respectively). (C) Level of anti-S1 IgM (median = 3 AU/mL and 23 AU/mL for day < 7 and days 7–13, respectively). Numbers in parenthesis indicate the percentages of data above and below the threshold. *P < 0.05, **P < 0.01 (Mann–Whitney test).