Fig. 3: Monitoring SARS-CoV-2 infections in schools.
From: Effective high-throughput RT-qPCR screening for SARS-CoV-2 infections in children
a The number of positive pool-RT-qPCRs is stratified by calendar week. b The rate of positivity of pool-RT-qPCRs is stratified by calendar week. c Maps of North Rhine-Westphalia depicting the 7-day pool-incidence per week and district. d Spearman correlation (two-tailed) between pool-incidence and SARS-CoV-2 incidence (p < 0.0001, r = 0.76). Each black dot represents one district of North Rhine-Westphalia. 95% CI is indicated by the bright red area. e Fraction of schools with at least one positive pool-RT-qPCR (pie-chart) and fraction of schools stratified by corresponding number of positive Pool-RT-qPCRs per school (bar chart). f Number of schools and positive pool-RT-qPCR stratified by school social deprivation index level. g Spearman correlation (two-tailed) between number of positive pool-RT-qPCRs/student and school social deprivation index level (p < 0.0001, r = 0.99). 95% CI is indicated by the bright red area.
