The impact of signal variability on COVID-19 epidemic growth rate estimation from wastewater surveillance data
Fig 5
Comparison to admissions data.
(A) Model fitted to data from hospital admissions of individuals living in the catchment of the Seafield WWTP using identical methods to those applied to wastewater data in previous figures. (B) The real time growth rate estimated using samples from the Seafield WWTP and admissions for the corresponding catchment area. (C) Pearson’s r correlation between the time-series produced in panel B and for the 10 largest WWTP catchments (by population) in Scotland over a range of lags. Circles are added at the bottom of the figure to show the value of the lag that yields the maximum correlation. The mean correlation over the 10 sites is shown as a dashed line. Positive lag implies that wastewater growth rates respond faster than those obtained from hospital admissions data.