Figure 2 | Scientific Reports

Figure 2

From: Online trend estimation and detection of trend deviations in sub-sewershed time series of SARS-CoV-2 RNA measured in wastewater

Figure 2

Retrospective estimates of the viral concentration trend with uncertainty quantification for the WWTP (the blue curve repeated each time) and each LS series, using all available information. The vertical axis is \(\log \)10 copies/liter. The shaded grey rectangles correspond to periods of missing data and the dotted lines correspond to the peaks of three surges. Note that the time series model is still able to provide estimates of the trend during periods of missing data, though with greater uncertainty. Compared to Fig. 1, the start date of this trend plot is later, since the first 10 weeks of data are used to initialize the model.

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