Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 Jun 23;224(8):1305–1315. doi: 10.1093/infdis/jiab333

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2021. Published by Oxford University Press for the Infectious Diseases Society of America.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Figure 1. — A, Detection of anti–SARS-CoV-2 spike 1, S1-RBD, and NP antibodies in convalescent sera from COVID-19 patients (n = 16) as compared to age-matched prepandemic healthy control samples (n = 22). ****P < .0001. Horizontal bars represent geometric mean antibody titers in each group. Dashed lines indicate the antibody positivity cutoff for anti-S1, S1-RBD, and NP IgG antibodies. B, Correlations between the antigen-specific anti–SARS-CoV-2 IgG antibodies to S1, S-RBD, and NP antigens in the convalescent samples (Pearson r = 0.85, 0.86, and 0.78, respectively). Abbreviations: COVID-19, coronavirus disease 2019; IgG, immunoglobulin G; NP, nucleocapsid protein; RBD, receptor-binding domain; S, spike; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2.