Basel’s wastewater is regularly tested to see which viruses are circulating in the population. For this, samples are analyzed for RNA copies, which are tiny genetic traces of viruses that people release 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 most recent day with available data, the concentration of RSV was 40.0 RNA copies per liter, while Influenza A and Influenza B were both at 0.0 RNA copies per liter. Compared to the previous 30 days, these values suggest a stable presence of RSV in the wastewater, with no detectable levels of Influenza A or B. Year-to-date and all-time data would provide further context on whether these levels are typical or indicate a change in viral circulation patterns.