Change in covid-19 risk over time following vaccination with CoronaVac: test negative case-control study
Hitchings MDT, Ranzani OT, Lind ML, Dorion M, D'Agostini TL, de Paula RC, de Paula OFP, de Moura Villela EF, Scaramuzzini Torres MS, de Oliveira SB, Schulz W, Almiron M, Said R, de Oliveira RD, Vieira da Silva P, de Araújo WN, Gorinchteyn JC, Dean NE, Andrews JR, Cummings DAT, Ko AI, Croda J. Change in covid-19 risk over time following vaccination with CoronaVac: test negative case-control study. The BMJ 2022, 377: e070102. PMID: 35697361, PMCID: PMC9189440, DOI: 10.1136/bmj-2022-070102.Peer-Reviewed Original ResearchConceptsSymptomatic COVID-19Negative case-control studyCase-control studyHospital admissionOdds ratioCOVID-19Series completionCovid-19 related hospital admissionReverse transcription polymerase chain reaction testingTranscription polymerase chain reaction testingSevere COVID-19 outcomesSARS-CoV-2 infectionPolymerase chain reaction testingInactivated whole virus vaccineDoses of CoronaVacAcute respiratory illnessTest-negative controlsWhole virus vaccineRelated hospital admissionsHealthcare worker statusConditional logistic regressionCOVID-19 outcomesCOVID-19 symptomsMunicipality of residenceSARS-CoV-2