Fig. 1From: Impact of baseline SARS-CoV-2 antibody status on syndromic surveillance and the risk of subsequent COVID-19—a prospective multicenter cohort studyFlow chart, illustrating the distribution of healthcare workers who reported any COVID-19 compatible symptoms and who had a positive nasopharyngeal swab for SARS-CoV-2, according to baseline serology result. Abbreviations: NPS= nasopharyngeal swab. Colours: green = baseline seronegative, red = baseline seropositiveBack to article page