Duration of antibody response to the receptor binding domain of SARS-CoV-2 in infected or vaccinated individuals - A one year retrospective cohort study

Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved..

The 2019 coronavirus (COVID-19) pandemic raised many scientific and medical questions. Of interest are the duration and effectiveness of the humoral immune response, especially since part of the pandemic occurred in the presence of anti-SARS-CoV-2 vaccines. We retrospectively studied 564 serum samples from 393 post-infected and vaccinated individuals to investigate the longevity and magnitude of the anti-spike IgG response. Our results showed that SARS-CoV-2 anti-spike IgG antibodies are retained for nine-twelve months, in both groups. In the vaccinated group we found higher IgG levels, but with a steeper decrease in titer over the study period. The recovered group's antibody levels correlated well with the national infection trendline for 2021. Both groups showed different, but distinct neutralizing capabilities towards RBD. The anti-Spike IgG response was sustained and efficient, independently of the triggering event, infection or vaccination, with the adaptive capacity against new viral variants being more valuable after infection.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:133

Enthalten in:

International immunopharmacology - 133(2024) vom: 14. Apr., Seite 112084

Sprache:

Englisch

Beteiligte Personen:

Pasev, Martin [VerfasserIn]
Trifonova, Angelina [VerfasserIn]
Velichkov, Andrey [VerfasserIn]
Terzieva, Velislava [VerfasserIn]

Links:

Volltext

Themen:

Antibody levels
Humoral immunity
Journal Article
Neutralization
SARS-CoV-2
Viral variants

Anmerkungen:

Date Revised 15.04.2024

published: Print-Electronic

Citation Status Publisher

doi:

10.1016/j.intimp.2024.112084

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM371104599