Association of facial paralysis with mRNA COVID-19 vaccines

SARS-CoV-2 vaccines

During the phase 3 clinical trials of mRNA COVID-19 vaccines, several cases of facial paralysis were observed in the vaccine groups (7 of 35.654) compared with 1 case of 35.611 people who received placebo. This potential safety signal was explored using the WHO pharmacovigilance database, VigiBase. On March 9, 2021, among the 133.883 cases of adverse drug reactions reported following mRNA COVID-19 vaccines a total of 844 facial paralysis-related events were [...]

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