Vaccines (May 2023)

Comparison of Adverse Effects of Two SARS-CoV-2 Vaccines Administered in Workers of the University of Padova

  • Paola Mason,
  • Rosario Rizzuto,
  • Luca Iannelli,
  • Flavio Baccaglini,
  • Valerio Rizzolo,
  • Andrea Baraldo,
  • Barbara Melloni,
  • Francesca Maffione,
  • Camilla Pezzoli,
  • Maria Laura Chiozza,
  • Giampietro Rupolo,
  • Marco Biasioli,
  • Filippo Liviero,
  • Maria Luisa Scapellato,
  • Andrea Trevisan,
  • Stefano Merigliano,
  • Alberto Scuttari,
  • Angelo Moretto,
  • Bruno Scarpa

DOI
https://doi.org/10.3390/vaccines11050951
Journal volume & issue
Vol. 11, no. 5
p. 951

Abstract

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Introduction: In Italy, on December 2020, workers in the education sector were identified as a priority population to be vaccinated against COVID-19. The first authorised vaccines were the Pfizer-BioNTech mRNA (BNT162b2) and the Oxford-AstraZeneca adenovirus vectored (ChAdOx1 nCoV-19) vaccines. Aim: To investigate the adverse effects of two SARS-CoV-2 vaccines in a real-life preventive setting at the University of Padova. Methods: Vaccination was offered to 10116 people. Vaccinated workers were asked to voluntarily report symptoms via online questionnaires sent to them 3 weeks after the first and the second shot. Results: 7482 subjects adhered to the vaccination campaign and 6681 subjects were vaccinated with ChAdOx1 nCoV-19 vaccine and 137 (fragile subjects) with the BNT162b2 vaccine. The response rate for both questionnaires was high (i.e., >75%). After the first shot, the ChAdOx1 nCoV-19 vaccine caused more fatigue (p p p p = 0.046), fever (p p p = 0.016) than the BNT162b2 vaccine. After the second dose of the BNT162b2 vaccine, more myalgia (p = 0.033), tingles (p = 0.022), and shivers (p Conclusions: The adverse effects of both vaccines were transient and, overall, mild in severity.

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