Fig. 3
From: Performance and suitability of wastewater based-surveillance for SARS-CoV-2 RNA in public schools
Total mass flux of SARS-CoV-2 genomic material across the city of Calgary relative to attendance patterns in the four individual schools monitored by WBS. (a) Daily city-wide dynamics of the mass flux of SARS-CoV-2 levels (N1 gene target) from June 2020 to June 2021 (black dots). Clinically confirmed COVID-19 new cases (5-day average) are represented by the orange line. The sampling period for the four schools is highlighted in grey, occurring during a period of low COVID-19 activity between waves 2 and 3. (b) Lines represent the line of best fit plotted with second order smoothing for the average attendance rate (staff and students) across all four schools (blue dots and line) plotted together with community burden of SARS-CoV-2 as measured in Calgary’s wastewater (same data as in panel A; black dots and line) from January to March 2021.
