Decreased Antibody Response After Severe Acute Respiratory Syndrome Coronavirus 2 Vaccination in Patients With Down Syndrome

  • Bianca M.M. Streng
  • , Marin Bont
  • , Eveline M. Delemarre
  • , Rob S. Binnendijk
  • , Gaby Smit
  • , Gerco den Hartog
  • , Antonia M.W. Coppus
  • , Esther de Vries
  • , Michel E. Weijerman
  • , Regina Lamberts
  • , Gert de Graaf
  • , Fiona R. van der Klis
  • , Gestur Vidarsson
  • , Neele Rave
  • , Louis J. Bont
  • , Joanne G. Wildenbeest

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

The risk of a severe course of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in adults with Down syndrome is increased, resulting in an up to 10-fold increase in mortality, in particular in those >40 years of age. After primary SARS-CoV-2 vaccination, the higher risks remain. In this prospective observational cohort study, SARS-CoV-2 spike S1-specific antibody responses after routine SARS-CoV-2 vaccination (BNT162b2, messenger RNA [mRNA]-1273, or ChAdOx1) in adults with Down syndrome and healthy controls were compared. Adults with Down syndrome showed lower antibody concentrations after 2 mRNA vaccinations or after 2 ChAdOx1 vaccinations. After 2 mRNA vaccinations, lower antibody concentrations were seen with increasing age. CLINICAL TRIALS REGISTRATION: NCT05145348.

Original languageEnglish
Pages (from-to)673-677
Number of pages5
JournalThe Journal of infectious diseases
Volume226
Issue number4
DOIs
Publication statusPublished - 15 Aug 2022

Keywords

  • COVID-19 vaccination
  • Down syndrome
  • SARS-CoV-2
  • antibody response

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