Incidence of SARS-CoV-2 infection among COVID-19 vaccinated and unvaccinated healthcare personnel, first responders, and other essential and frontline workers: Eight US locations, January-September 2021.
Allison L NalewayLauren GrantAlberto J Caban-MartinezMeredith G WesleyJefferey L BurgessKimberly GrooverManjusha GaglaniSarang K YoonHarmony L TynerJennifer MeeceJennifer L KuntzYoung M YooNatasha Schaefer SolleLauren E W OlshoJoe K GeraldSpencer RoseMatthew S ThieseJessica LundgrenHolly C GroomJosephine MakPaola Louzado-FelicianoLaura J EdwardsKaren LutrickKayan DunniganAndrew L PhillipsJulie Mayo LamberteRoger NoriegaBrian E SokolMarilyn OdeanKatherine D EllingsonMichael SmithKurt T HegmannKarley RespetMonica DickersonAlexandra CruzDeanna E FlearyKempapura MurthyAngela HuntEduardo Azziz-BaumgartnerDamena Gallimore-WilsonJenna A HarderLeah Odame-BamfoJennifer ViergutzMelissa ArvayJohn M JonesPeenaz MistryMark G ThompsonAshley L FowlkesPublished in: Influenza and other respiratory viruses (2022)
COVID-19 vaccination was significantly associated with a lower risk of SARS-CoV-2 infection despite Delta variant predominance. Our data demonstrate the added protective benefit of facemask use among both unvaccinated and vaccinated frontline workers.