BNT162b2 COVID-19 Vaccine Safety among Healthcare Workers of a Tertiary Hospital in Italy

Millions of people have died because of the COVID-19 pandemic. The vaccination campaign helped tackle the pandemic and saved millions of lives. In a retrospective pharmacovigilance study, we explored the safety of the BNT162b2 (Comirnaty) vaccine among healthcare workers (HCWs) in a large Italian te...

Full description

Bibliographic Details
Main Authors: Flavia Beccia, Luca Regazzi, Eleonora Marziali, Viria Beccia, Domenico Pascucci, Nadia Mores, Giuseppe Vetrugno, Patrizia Laurenti
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Vaccines
Subjects:
Online Access:https://www.mdpi.com/2076-393X/11/2/477
_version_ 1797617871024553984
author Flavia Beccia
Luca Regazzi
Eleonora Marziali
Viria Beccia
Domenico Pascucci
Nadia Mores
Giuseppe Vetrugno
Patrizia Laurenti
author_facet Flavia Beccia
Luca Regazzi
Eleonora Marziali
Viria Beccia
Domenico Pascucci
Nadia Mores
Giuseppe Vetrugno
Patrizia Laurenti
author_sort Flavia Beccia
collection DOAJ
description Millions of people have died because of the COVID-19 pandemic. The vaccination campaign helped tackle the pandemic and saved millions of lives. In a retrospective pharmacovigilance study, we explored the safety of the BNT162b2 (Comirnaty) vaccine among healthcare workers (HCWs) in a large Italian teaching hospital, and 2428 Adverse Events Reports (AERs) filed by HCWs after the administration of the first dose of vaccine were collected and analyzed, reporting the results quantitively and comparing them to the vaccine Summary of Product Characteristics (SPC). Spearman’s correlation coefficients were computed to investigate the correlation among reported adverse effects, and recurrent clusters of symptoms were investigated through the Principal Component Analysis (PCA) and k-means Cluster Analysis. The BNT162b2 vaccine’s safety profile was favorable, with predominant reports of early onset, mild, non-serious and short-term resolved symptoms. We observed higher than the expected frequency for various non-serious undesirable effects, especially among those listed and classified as less common in the SPC. Furthermore, we identified three clusters of adverse effects that were frequently reported together, defined by the presence/absence of fatigue, malaise, localized pain, chills, pyrexia, insomnia, nausea and injection site pain. Post-marketing pharmacovigilance activities, together with targeted public health interventions, can be valuable tools to promote vaccination and improve the control of the spread of the pandemic, especially in sensitive settings and populations such as hospitals and healthcare professionals.
first_indexed 2024-03-11T08:02:06Z
format Article
id doaj.art-b18897e6c266436faf33d2bac59d8c93
institution Directory Open Access Journal
issn 2076-393X
language English
last_indexed 2024-03-11T08:02:06Z
publishDate 2023-02-01
publisher MDPI AG
record_format Article
series Vaccines
spelling doaj.art-b18897e6c266436faf33d2bac59d8c932023-11-16T23:44:58ZengMDPI AGVaccines2076-393X2023-02-0111247710.3390/vaccines11020477BNT162b2 COVID-19 Vaccine Safety among Healthcare Workers of a Tertiary Hospital in ItalyFlavia Beccia0Luca Regazzi1Eleonora Marziali2Viria Beccia3Domenico Pascucci4Nadia Mores5Giuseppe Vetrugno6Patrizia Laurenti7Section of Hygiene, Department of Life Sciences and Public Health, Università Cattolica del Sacro Cuore, 00168 Rome, ItalySection of Hygiene, Department of Life Sciences and Public Health, Università Cattolica del Sacro Cuore, 00168 Rome, ItalySection of Hygiene, Department of Life Sciences and Public Health, Università Cattolica del Sacro Cuore, 00168 Rome, ItalyMedical Oncology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore, 00168 Rome, ItalySection of Hygiene, Department of Life Sciences and Public Health, Università Cattolica del Sacro Cuore, 00168 Rome, ItalyDepartment of Pharmacology, Faculty of Medicine, Università Cattolica del Sacro Cuore, 00168 Rome, ItalyRisk Management Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, ItalySection of Hygiene, Department of Life Sciences and Public Health, Università Cattolica del Sacro Cuore, 00168 Rome, ItalyMillions of people have died because of the COVID-19 pandemic. The vaccination campaign helped tackle the pandemic and saved millions of lives. In a retrospective pharmacovigilance study, we explored the safety of the BNT162b2 (Comirnaty) vaccine among healthcare workers (HCWs) in a large Italian teaching hospital, and 2428 Adverse Events Reports (AERs) filed by HCWs after the administration of the first dose of vaccine were collected and analyzed, reporting the results quantitively and comparing them to the vaccine Summary of Product Characteristics (SPC). Spearman’s correlation coefficients were computed to investigate the correlation among reported adverse effects, and recurrent clusters of symptoms were investigated through the Principal Component Analysis (PCA) and k-means Cluster Analysis. The BNT162b2 vaccine’s safety profile was favorable, with predominant reports of early onset, mild, non-serious and short-term resolved symptoms. We observed higher than the expected frequency for various non-serious undesirable effects, especially among those listed and classified as less common in the SPC. Furthermore, we identified three clusters of adverse effects that were frequently reported together, defined by the presence/absence of fatigue, malaise, localized pain, chills, pyrexia, insomnia, nausea and injection site pain. Post-marketing pharmacovigilance activities, together with targeted public health interventions, can be valuable tools to promote vaccination and improve the control of the spread of the pandemic, especially in sensitive settings and populations such as hospitals and healthcare professionals.https://www.mdpi.com/2076-393X/11/2/477COVID-19ComirnatyBNT162b2pharmacovigilancepandemicsafety
spellingShingle Flavia Beccia
Luca Regazzi
Eleonora Marziali
Viria Beccia
Domenico Pascucci
Nadia Mores
Giuseppe Vetrugno
Patrizia Laurenti
BNT162b2 COVID-19 Vaccine Safety among Healthcare Workers of a Tertiary Hospital in Italy
Vaccines
COVID-19
Comirnaty
BNT162b2
pharmacovigilance
pandemic
safety
title BNT162b2 COVID-19 Vaccine Safety among Healthcare Workers of a Tertiary Hospital in Italy
title_full BNT162b2 COVID-19 Vaccine Safety among Healthcare Workers of a Tertiary Hospital in Italy
title_fullStr BNT162b2 COVID-19 Vaccine Safety among Healthcare Workers of a Tertiary Hospital in Italy
title_full_unstemmed BNT162b2 COVID-19 Vaccine Safety among Healthcare Workers of a Tertiary Hospital in Italy
title_short BNT162b2 COVID-19 Vaccine Safety among Healthcare Workers of a Tertiary Hospital in Italy
title_sort bnt162b2 covid 19 vaccine safety among healthcare workers of a tertiary hospital in italy
topic COVID-19
Comirnaty
BNT162b2
pharmacovigilance
pandemic
safety
url https://www.mdpi.com/2076-393X/11/2/477
work_keys_str_mv AT flaviabeccia bnt162b2covid19vaccinesafetyamonghealthcareworkersofatertiaryhospitalinitaly
AT lucaregazzi bnt162b2covid19vaccinesafetyamonghealthcareworkersofatertiaryhospitalinitaly
AT eleonoramarziali bnt162b2covid19vaccinesafetyamonghealthcareworkersofatertiaryhospitalinitaly
AT viriabeccia bnt162b2covid19vaccinesafetyamonghealthcareworkersofatertiaryhospitalinitaly
AT domenicopascucci bnt162b2covid19vaccinesafetyamonghealthcareworkersofatertiaryhospitalinitaly
AT nadiamores bnt162b2covid19vaccinesafetyamonghealthcareworkersofatertiaryhospitalinitaly
AT giuseppevetrugno bnt162b2covid19vaccinesafetyamonghealthcareworkersofatertiaryhospitalinitaly
AT patrizialaurenti bnt162b2covid19vaccinesafetyamonghealthcareworkersofatertiaryhospitalinitaly