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Fig. 2 | BMC Medicine

Fig. 2

From: Impact of baseline SARS-CoV-2 antibody status on syndromic surveillance and the risk of subsequent COVID-19—a prospective multicenter cohort study

Fig. 2

Kaplan-Meier curve showing time to positive nasopharyngeal swab in 4812 healthcare workers with positive (dark green, n = 144) and negative (light green, n = 4668) baseline anti-nucleocapsid antibodies. Dashed lines show 95% confidence intervals. Abbreviations: HR = hazard ratio, CI = confidence interval, SARS-CoV-2 = Severe Acute Respiratory Syndrome Coronavirus-2

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BMC Medicine

ISSN: 1741-7015

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