Clinical and Molecular Characterization of a Rare Case of BNT162b2 mRNA COVID-19 Vaccine-Associated Myositis

Eli Magen, Sumit Mukherjee, Mahua Bhattacharya, Rajesh Detroja, Eugene Merzon, Idan Blum, Alejandro Livoff, Mark Shlapobersky, Gideon Baum, Ran Talisman, Evgenia Cherniavsky, Amir Dori, Milana Frenkel-Morgenstern

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Initial clinical trials and surveillance data have shown that the most commonly administered BNT162b2 COVID-19 mRNA vaccine is effective and safe. However, several cases of mRNA vaccine-induced mild to moderate adverse events were recently reported. Here, we report a rare case of myositis after injection of the first dose of BNT162b2 COVID-19 mRNA vaccine into the left deltoid muscle of a 34-year-old, previously healthy woman who presented progressive proximal muscle weakness, progressive dysphagia, and dyspnea with respiratory failure. One month after vaccination, BNT162b2 vaccine mRNA expression was detected in a tissue biopsy of the right deltoid and quadriceps muscles. We propose this case as a rare example of COVID-19 mRNA vaccine-induced myositis. This study comprehensively characterizes the clinical and molecular features of BNT162b2 mRNA vaccine-associated myositis in which the patient was severely affected.

Original languageEnglish
Article number1135
JournalVaccines
Volume10
Issue number7
DOIs
StatePublished - 1 Jul 2022

Keywords

  • BNT162b2
  • COVID-19
  • mRNA vaccine
  • myositis

ASJC Scopus subject areas

  • Immunology
  • Pharmacology
  • Drug Discovery
  • Infectious Diseases
  • Pharmacology (medical)

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