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Cumulative incidence of the first instance of COVID-19 along with circles denoting the timing of COVID-19 cases annotated by strain and vaccination status (ie, received both doses of NVX-CoV2373). Both sequenced and imputed strains are included. Note the NVX-COV2373:placebo randomization ratio was 2:1. Abbreviation: COVID-19, coronavirus disease 2019.
