Wastewater-based Surveillance on SARS-CoV-2
AMELAG Weekly Report 04.06.2025
Robert Koch-Institut
Umweltbundesamt
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; around 70 sites participate in 2025. The data collected will be integrated into this report in the coming weeks. For the calendar week 22 data from 57 WWTPs for SARS-CoV-2, from 60 WWTPs for influenza A virus and influenza B, from 40 WWTPs for RSV A and B and from 21 WWTPs of RSV A/B (joint measurements of RSV A and B) were available. Data from other WWTP are provided continuously.
The aggregated SARS-CoV-2 viral load is currently on a low level. The values of the aggregated influenza A and B viruses are currently on a low level. The RSV load values in wastewater are on a low level for RSV A and further declining for RSV B. The aggregated viral load of the combined measurements of RSV A and B is also on a low level. The development observed over the last few weeks may still change due to late notifications.
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