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SARS-CoV-2 Neutralizing Antibodies: Longevity, Breadth, and Evasion by Emerging Viral Variants

Abstract

The Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) antibody neutralization response and its evasion by emerging viral variants and variant of concern (VOC) are unknown, but critical to understand reinfection risk and breakthrough infection following vaccination. Antibody immunoreactivity against SARS-CoV-2 antigens and Spike variants, inhibition of Spike-driven virus-cell fusion, and infectious SARS-CoV-2 neutralization were characterized in 807 serial samples from 233 reverse transcription polymerase chain reaction (RT-PCR)-confirmed Coronavirus Disease 2019 (COVID-19) individuals with detailed demographics and followed up to 7 months. A broad and sustained polyantigenic immunoreactivity against SARS-CoV-2 Spike, Membrane, and Nucleocapsid proteins, along with high viral neutralization, was associated with COVID-19 severity. A subgroup of "high responders" maintained high neutralizing responses over time, representing ideal convalescent plasma donors. Antibodies generated against SARS-CoV-2 during the first COVID-19 wave had reduced immunoreactivity and neutralization potency to emerging Spike variants and VOC. Accurate monitoring of SARS-CoV-2 antibody responses would be essential for selection of optimal responders and vaccine monitoring and design.

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References
1.
Salazar E, Christensen P, Graviss E, Nguyen D, Castillo B, Chen J . Significantly Decreased Mortality in a Large Cohort of Coronavirus Disease 2019 (COVID-19) Patients Transfused Early with Convalescent Plasma Containing High-Titer Anti-Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Spike Protein IgG. Am J Pathol. 2020; 191(1):90-107. PMC: 7609241. DOI: 10.1016/j.ajpath.2020.10.008. View

2.
Rockett R, Arnott A, Lam C, Sadsad R, Timms V, Gray K . Revealing COVID-19 transmission in Australia by SARS-CoV-2 genome sequencing and agent-based modeling. Nat Med. 2020; 26(9):1398-1404. DOI: 10.1038/s41591-020-1000-7. View

3.
Joyner M, Carter R, Senefeld J, Klassen S, Mills J, Johnson P . Convalescent Plasma Antibody Levels and the Risk of Death from Covid-19. N Engl J Med. 2021; 384(11):1015-1027. PMC: 7821984. DOI: 10.1056/NEJMoa2031893. View

4.
Shrock E, Fujimura E, Kula T, Timms R, Lee I, Leng Y . Viral epitope profiling of COVID-19 patients reveals cross-reactivity and correlates of severity. Science. 2020; 370(6520). PMC: 7857405. DOI: 10.1126/science.abd4250. View

5.
Dan J, Mateus J, Kato Y, Hastie K, Yu E, Faliti C . Immunological memory to SARS-CoV-2 assessed for up to 8 months after infection. Science. 2021; 371(6529). PMC: 7919858. DOI: 10.1126/science.abf4063. View