Protection against omicron (B.1.1.529) BA.2 reinfection conferred by primary omicron BA.1 or pre-omicron SARS-CoV-2 infection among health-care workers with and without mRNA vaccination: a test-negative case-control study
Sara Carazo, Danuta M. Skowronski, Marc Brisson, Sapha Barkati, Chantal Sauvageau, Nicholas Brousseau, Rodica Gilca, Judith Fafard, Denis Talbot, Moussa Ouakki, Vladimir Gîlca, Alex Carignan, Geneviève Deceuninck, Philippe De Wals, Gaston De Serres
Topics & Concepts
VaccinationMedicineLogistic regressionPrimary careSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)ImmunologyVirologyCoronavirus disease 2019 (COVID-19)Internal medicineDiseaseFamily medicineInfectious disease (medical specialty)SARS-CoV-2 and COVID-19 ResearchLong-Term Effects of COVID-19Infection Control and Ventilation