Wastewater-based Surveillance

Abstract

In the AMELAG project, SARS-CoV-2, influenza viruses and respiratory syncytial virus (RSV) are monitored in wastewater. Nationwide, 168 wastewater treatment plants were participating by the end of 2024; up to 70 sites are expected to participate in 2025. The data collected will be integrated into this report in the coming weeks. For the calendar week 7 data from 55 WWTPs for SARS-CoV-2, from 55 WWTPs for influenza A virus and influenza B, from 25 WWTPs for RSV A and B and from 27 WWTPs of RSV A/B (joint measurements of RSV A and B) were available. Data from other WWTP are provided continuously. Recently, a slightly decreasing aggregated SARS-CoV-2 viral load can be observed. Aside from the current week, the values of influenza A and B viruses have increased significantly in recent weeks, with higher values for influenza A than for influenza B. The values of RSV have increased significantly in recent weeks, with higher values for RSV B than for RSV A. The development observed over the last few weeks may still change due to late notifications.