Fig. 2: Implementing the Lolli-Method screening concept in schools and daycare facilities.
From: Effective high-throughput RT-qPCR screening for SARS-CoV-2 infections in children
a Map of North Rhine–Westphalia. Black dots mark the location of each school. b Epidemiological characteristics of the tested students and characteristics of schools. Black horizontal lines in the violin plots represent median (M), first (Q1) and third (Q3) quartile (Students/class: M = 23, Q1 = 18, Q3 = 25; Students/schools: M = 193, Q1 = 134, Q3 = 246. c 7-day incidence of different age groups (top) and frequency of variants of concern according to data published by the Robert Koch Institute (bottom) stratified by calendar week. Summer holidays are marked in gray. d Number of performed RT-qPCRs (blue), average pool sizes (green) and total number of performed tests are stratified by calendar week. The horizontal lines in the green Box-Whisker-Plot indicate the medians, the lines at the top and at the bottom of the boxes indicate first and third quartiles and the error bars represent minimum and maximum pool sizes.
