Figure 2
From: Improved methods for the detection and quantification of SARS-CoV-2 RNA in wastewater
Evolution in the number of cases and quantification of SARS-CoV-2. Panel (A) shows the number of cases confirmed in the previous 14 days, and the concentration of SARS-CoV-2 RNA (log gc/L). Data obtained with method 4 is represented by black (N1) and white (N2) squares. Data obtained with method 5 is represented by black (N1) and white (N2) triangles. The date corresponds to the epidemiological data, the day after the wastewater was collected. Panel (B) shows the data variation in N1 and N2 targets between weeks obtained in this work with two different methods (4 and 5) and provided by VATar-COVID-19 project. In bold results which vary between the project VATar-COVID-19 and those obtained in this work. Significant decrease (SD) < − 1; Decrease (D) − 1 to − 0.4; Negative Stable (S) − 0.4 to 0; Positive Stable (S) 0 to 0.4; Increase (I) 0.4 to 1 and Significant increase (SI) > 1. *Discrepancy between N1 and N2, data corresponding to N1 trend. N.S. Not sample, P.P. Presumptive positive (one positive target, two not detected targets), D.N. Data not suitable, MgV recovery < 1%.
