Vaccine safety in children with genetically confirmed mitochondrial disease

Annemarie de Vreugd, Franz A. Zimmermann (First author), Katja Steinbruecker (Co-author), Maaike C. de Vries, Lonneke de Boer, Mirian C. H. Janssen, Martina Huemer, Saskia B. Wortmann* (Last author)

*Corresponding author for this work

Research output: Contribution to journalOriginal Articlepeer-review

Abstract

We here explore adverse events following immunization (AEFI) in children with mitochondrial disease (MD) recruited from two expertise centers in Austria (SALK) and The Netherlands (RUMC). Parents completed a questionnaire on the type of immunizations received and AEFI in a post-vaccination exposure period of seven days. 95 individuals were invited to this study, of whom 30 (median age 13.4 years) participated. Together these individuals had received 376 immunizations with a median of 12 vaccinations each. In 316 of 376 (84 %) vaccinations no AEFI occurred, 22 patients (73 %) never experienced any AEFI. Eight patients experienced 76 AEFI after 60 vaccinations, these were mild (redness (n = 9) /pain at injection site (n = 21), fever (n = 44), gastrointestinal complaints (n = 2)). None had a metabolic deterioration or seizures, no patient was admitted to the hospital. Although our data is limited by the small sample size, this may aid in discussing responsible immunization decisions with parents.
Original languageEnglish
Article number106946
Number of pages6
JournalIMMUNOLOGY LETTERS
Volume271
Early online dateNov 2024
DOIs
Publication statusPublished - Feb 2025

Keywords

  • Adverse effect
  • Adverse events following immunization (AEFI)
  • Epilepsy
  • Immunization
  • Metabolic deterioration
  • Seizure
  • Side effect
  • Vaccination

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