Nature Communications (May 2023)

Impaired humoral immunity to BQ.1.1 in convalescent and vaccinated patients

  • Felix Dewald,
  • Martin Pirkl,
  • Martha Paluschinski,
  • Joachim Kühn,
  • Carina Elsner,
  • Bianca Schulte,
  • Jacqueline Knüfer,
  • Elvin Ahmadov,
  • Maike Schlotz,
  • Göksu Oral,
  • Michael Bernhard,
  • Mark Michael,
  • Maura Luxenburger,
  • Marcel Andrée,
  • Marc Tim Hennies,
  • Wali Hafezi,
  • Marlin Maybrit Müller,
  • Philipp Kümpers,
  • Joachim Risse,
  • Clemens Kill,
  • Randi Katrin Manegold,
  • Ute von Frantzki,
  • Enrico Richter,
  • Dorian Emmert,
  • Werner O. Monzon-Posadas,
  • Ingo Gräff,
  • Monika Kogej,
  • Antonia Büning,
  • Maximilian Baum,
  • Finn Teipel,
  • Babak Mochtarzadeh,
  • Martin Wolff,
  • Henning Gruell,
  • Veronica Di Cristanziano,
  • Volker Burst,
  • Hendrik Streeck,
  • Ulf Dittmer,
  • Stephan Ludwig,
  • Jörg Timm,
  • Florian Klein

DOI
https://doi.org/10.1038/s41467-023-38127-y
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 13

Abstract

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Abstract Determining SARS-CoV-2 immunity is critical to assess COVID-19 risk and the need for prevention and mitigation strategies. We measured SARS-CoV-2 Spike/Nucleocapsid seroprevalence and serum neutralizing activity against Wu01, BA.4/5 and BQ.1.1 in a convenience sample of 1,411 patients receiving medical treatment in the emergency departments of five university hospitals in North Rhine-Westphalia, Germany, in August/September 2022. 62% reported underlying medical conditions and 67.7% were vaccinated according to German COVID-19 vaccination recommendations (13.9% fully vaccinated, 54.3% one booster, 23.4% two boosters). We detected Spike-IgG in 95.6%, Nucleocapsid-IgG in 24.0%, and neutralization against Wu01, BA.4/5 and BQ.1.1 in 94.4%, 85.0%, and 73.8% of participants, respectively. Neutralization against BA.4/5 and BQ.1.1 was 5.6- and 23.4-fold lower compared to Wu01. Accuracy of S-IgG detection for determination of neutralizing activity against BQ.1.1 was reduced substantially. We explored previous vaccinations and infections as correlates of BQ.1.1 neutralization using multivariable and Bayesian network analyses. Given a rather moderate adherence to COVID-19 vaccination recommendations, this analysis highlights the need to improve vaccine-uptake to reduce the COVID-19 risk of immune evasive variants. The study was registered as clinical trial (DRKS00029414).