Citations to this article
Citation Information: JCI Insight. 2022;7(19):e159944. https://doi.org/10.1172/jci.insight.159944.
Abstract
Protective immunity against SARS-CoV-2 infection after COVID-19 vaccination may differ by variant. We enrolled vaccinated (n = 39) and unvaccinated (n = 11) individuals with acute, symptomatic SARS-CoV-2 Delta or Omicron infection and performed SARS-CoV-2 viral load quantification, whole-genome sequencing, and variant-specific antibody characterization at the time of acute illness and convalescence. Viral load at the time of infection was inversely correlated with antibody binding and neutralizing antibody responses. Across all variants tested, convalescent neutralization titers in unvaccinated individuals were markedly lower than in vaccinated individuals. Increases in antibody titers and neutralizing activity occurred at convalescence in a variant-specific manner. For example, among individuals infected with the Delta variant, neutralizing antibody responses were weakest against BA.2, whereas infection with Omicron BA.1 variant generated a broader response against all tested variants, including BA.2.
Authors
Michael S. Seaman, Mark J. Siedner, Julie Boucau, Christy L. Lavine, Fadi Ghantous, May Y. Liew, Josh I. Mathews, Arshdeep Singh, Caitlin Marino, James Regan, Rockib Uddin, Manish C. Choudhary, James P. Flynn, Geoffrey Chen, Ashley M. Stuckwisch, Taryn Lipiner, Autumn Kittilson, Meghan Melberg, Rebecca F. Gilbert, Zahra Reynolds, Surabhi L. Iyer, Grace C. Chamberlin, Tammy D. Vyas, Jatin M. Vyas, Marcia B. Goldberg, Jeremy Luban, Jonathan Z. Li, Amy K. Barczak, Jacob E. Lemieux
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Nurisyah S, Iyori M, Hasyim AA, Sakamoto A, Hashimoto H, Yamagata K, Yamauchi S, Amru K, Zainal KH, Idris I, Yoshida S, Djaharuddin I, Syafruddin D, Bukhari A, Asih PB, Yusuf Y |
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SARS-CoV-2 Viral Clearance and Evolution Varies by Extent of Immunodeficiency.
Li Y, Choudhary MC, Regan J, Boucau J, Nathan A, Speidel T, Liew MY, Edelstein GE, Kawano Y, Uddin R, Deo R, Marino C, Getz MA, Reynold Z, Barry M, Gilbert RF, Tien D, Sagar S, Vyas TD, Flynn JP, Hammond SP, Novack LA, Choi B, Cernadas M, Wallace ZS, Sparks JA, Vyas JM, Seaman MS, Gaiha GD, Siedner MJ, Barczak AK, Lemieux JE, Li JZ |
medRxiv : the preprint server for health sciences | 2023 |
