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. 2020 Aug 31;130(10):5235–5244. doi: 10.1172/JCI138759

Figure 4. IgG antibody response against different SARS-CoV-2 proteins or fragments.

Figure 4

Plasma samples collected at different time points after admission were used for IgG detection in different protein-coated ELISAs: S (1209 aa) (A), S1 (681 aa) (B), RBD (457 aa) (C), S2 (539 aa) (D), and N (430 aa) (E). Eleven plasma samples from HDs were used as controls. The correlations among IgG levels against different viral proteins were analyzed and summarized. Pearson’s correlation coefficient was used to assess the relationship among antiviral IgG levels of different proteins (F). A Student’s t test was used to analyze differences in mean values between groups A–E. A P value less than 0.05 was considered to be statistically significant. **P ≤ 0.01.