Incidence of Bell’s palsy after Coronavirus disease (COVID-19) vaccination: a systematic review and meta-analysis.

Publication date: Jul 09, 2023

To estimate the pooled incidence of Bell’s palsy after COVID-19 vaccination. PubMed, Scopus, EMBASE, Web of Science, and google scholar were searched by two independent researchers. We also searched gray literature including references of the references and conference abstracts. We extracted data regarding the total number of participants, first author, publication year, the country of origin, female/male, type of vaccines, and the number of patients who developed Bell’s palsy after COVID-19 vaccination. Literature search revealed 370 articles, subsequently deleting duplicates 227 remained. After careful evaluation of the full texts, twenty articles remained for meta-analysis. The most commonly administered vaccines were Pfizer followed by Moderna. In total, 4. 54e+07 individuals received vaccines against COVID-19, and 1739 cases developed Bell’s palsy. In nine studies, controls (individuals without vaccination) were enrolled. The total number of controls was 1809069, of whom, 203 developed Bell’s palsy. The incidence of Bell’s palsy after COVID-19 vaccines was ignorable. The odds of developing Bell’s palsy after COVID-19 vaccines was 1. 02 (95%CI: 0. 79-1. 32) (I2 = 74. 8%, p 

Concepts Keywords
Coronavirus Bell palsy
Google COVID-19 vaccines
Researchers Incidence
Vaccination Incidencia
Vacunas COVID-19


Type Source Name
pathway KEGG Coronavirus disease
disease MESH COVID-19
disease VO vaccination
disease IDO country
disease MESH Bell palsy

Original Article

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