Basel’s wastewater is regularly tested to see which viruses are circulating in the population. For this, samples are analyzed for viral RNA copies, tiny genetic traces of viruses that people shed when they are infected. Measuring these traces doesn’t provide exact case numbers or indicate the severity of an illness, but it helps show whether infections are increasing or decreasing over time. This way, wastewater monitoring works like an early warning system for public health. For more details, you can explore the linked publications and dashboards.

On the day of interest, the concentration of Influenza A genome copies per liter was 40.0, Influenza B was 0.0, and RSV was 40.0. These values provide a snapshot of the viral activity in the wastewater on that particular day. When compared to the previous 30 days, year-to-date, and all-time data, these values can indicate whether there is an upward or downward trend in viral presence. Such comparisons are crucial for understanding the dynamics of virus circulation in the community over time.

Table 1 shows the combined concentrations of Influenza A, Influenza B, and RSV genome copies per liter over the last seven days, providing an overview of current viral activity in the wastewater. Table 2 shows the highest annual combined genome copy concentrations for Influenza A, Influenza B, and RSV, allowing comparison between recent measurements and historical peak values. These tables are essential for contextualizing current data within broader temporal trends, aiding in the assessment of public health risks.