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. 2023 Sep 15;72(37):1005–1009. doi: 10.15585/mmwr.mm7237a2

FIGURE 1.

The figure is a series of three panels showing respiratory syncytial virus- and influenza-associated emergency department visits and wastewater concentrations for respiratory syncytial virus and influenza in three Wisconsin cities during August 2022–March 2023.

Respiratory syncytial virus–associated and influenza-associated emergency department visits* and wastewater concentrations for respiratory syncytial virus and influenza A virus — three Wisconsin cities, August 2022–March 2023§

Abbreviations: ED = emergency department; LOESS = locally estimated scatterplot smoothing; RSV = respiratory syncytial virus.

* Collected from the Electronic Surveillance System for the Early Notification of Community-Based Epidemics (ESSENCE) and based on CDC-provided definitions.

Wastewater concentration values were log(10) and denoted in gene copies per L (gc/L); a value of 1 gc/L was added to all wastewater concentrations to allow for log(10) transformation of previously zero values.

§ LOESS lines are overlaid to display general trend in wastewater concentration data.