mRNA (BNT162b2) COVID-19 vaccination increased risk of Bell's palsy: a nested case control and self-controlled case series study.
Eric Yuk Fai WanCeline Sze Ling ChuiVanessa Wai Sei NgYuan WangVincent Ka Chun YanIvan Chun Hang LamMin FanFrancisco Tsz Tsun LaiEsther Wai Yin ChanXue LiCarlos King Ho WongRaccoon Ka Cheong ChungBenjamin John CowlingWing Chi FongAlexander Yuk Lun LauVincent Chung Tong MokFrank Ling Fung ChanCheuk Kwong LeeLot Sze Tao ChanDawin LoKui Kai LauIvan Fan Ngai HungChak Sing LauGabriel Matthew LeungIan Chi Kei Ck WongPublished in: Clinical infectious diseases : an official publication of the Infectious Diseases Society of America (2022)
There is an overall increased risk of Bell's palsy following BNT162b2 vaccination, particularly within the first 14 days after the second dose, but the absolute risk was very low.