Immunogenicity of SARS-CoV-2 Vaccine in Kidney Transplant Recipients: A Cross-Sectional Study in Korea

Seung Hwan Song, Ku Yong Chung, Yongho Jee, Hae Sun Chung, Kina Kim, Dohsik Minn, Soo Kyung Kim

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Eighty-five Korean kidney transplant recipients who received three doses of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine were tested with anti-receptor binding domain (RBD) antibody and neutralizing antibody. High anti-RBD antibody (≥ 100 U/mL) and neutralizing antibody responses (≥ 30%) were detected in 51/85 (60.0%) patients. When we divided the patients with the time from transplantation to vaccination (< 1, 1–2.4, 2.5–4.9, and ≥ 5-year), anti-RBD antibody titers were 3.2 U/mL, 27.8 U/mL, 370.2 U/mL, and 5,094.2 U/mL (P < 0.001) and anti-neutralizing antibody levels were 2.2%, 11.6%, 45.6%, and 93.0% (P < 0.001), respectively. Multivariate analysis revealed increased antibody responses when the time from transplantation to vaccination was five years or longer (odds ratio, 12.0; confidence interval, 2.7–52.8). Korean kidney transplant recipients had suboptimal antibody responses after the third dose of SARS-CoV-2 vaccine.

Original languageEnglish
Article numbere22
JournalJournal of Korean Medical Science
Volume38
Issue number5
DOIs
StatePublished - 2023

Bibliographical note

Publisher Copyright:
© 2023 The Korean Academy of Medical Sciences

Keywords

  • COVID-19
  • Kidney Transplantation
  • SARS-CoV-2
  • Vaccine

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