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. 2022 Jul 27:jiac319. doi: 10.1093/infdis/jiac319

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Published by Oxford University Press on behalf of Infectious Diseases Society of America 2022.

This work is written by (a) US Government employee(s) and is in the public domain in the US.

This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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Figure 1. — Antibody responses in asymptomatic and mild symptomatic SARS-CoV-2 infections. Data are shown for 3 time points: enrollment (Enroll), date of PCR-positivity (PCR+), and the convalescent period (Conv). A, Serum spike IgG titers; unpaired Mann-Whitney test (P = .4294). B, Serum spike IgA titers; unpaired Mann-Whitney test (P = .4616). C, SARS-CoV-2 PSV neutralization titers; unpaired Mann-Whitney test (P = .0819). Horizontal lines represent the median. Abbreviations: IC₅₀, 50% inhibitory concentration; IgA, immunoglobulin A; IgG, immunoglobulin G; PSV, pseudovirus; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2,