Fig. 1
From: Recovered COVID-19 patients with recurrent viral RNA exhibit lower levels of anti-RBD antibodies
Comparison of antibody responses to SARS-CoV-2 between PRN and RP patients. Kinetics of binding IgG (a) and IgM (b) targeting the RBD, S, HR1–HR2, N, M, and E proteins in 47 recovered COVID-19-patient plasma samples collected during the convalescent period are shown. The Y-axis represents optical density units at OD450 nm, and the X-axis represents reciprocal plasma dilutions. c Normalized OD450 nm values of the anti-SARS-CoV-2 IgG to the RBD, S, HR1–HR2, N, M, and E proteins are compared between PRN and RP patients. The P value was calculated using a two-tailed Mann–Whitney U test or unpaired Student’s t test. d Normalized OD450 nm values of the anti-RBD IgG were compared between PRN-severe, PRN-moderate, and RP patients. The P value was calculated using a two-tailed Mann–Whitney U test or unpaired Student’s t test. e Normalized OD450 nm values of the anti-RBD IgM were compared between PRN and RP patients. The P value was calculated using a two-tailed Mann–Whitney U test
