Bell’s palsy following COVID-19 vaccination

Currently two Coronavirus Disease 2019 (COVID-19) vaccines have been granted emergency use and marketing authorization by the US Food and Drug Administration (FDA) and the European Medicines Agency (EMA) [12]. Initial efficacy and safety data for both BNT162b2 (Pfizer-BioNTech) and mRNA-1273 (Moderna) vaccines have been published [34]. To the best of our knowledge, there is no mention of facial paralysis in the article describing safety and efficacy of the BNT162b2 vaccine [3], however, four such adverse events were eventually highlighted in product monographs published by the relevant regulatory bodies [15]. Although FDA vaccine review memoranda do mention the occurrence of facial paralysis in the test group for both vaccines [12], consumer/patient information sheets of neither of the vaccines distributed in North America warn about Bell’s palsy as a possible adverse effect [6].


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