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Wastewater Monitoring Results for 2026-02-21

Published: February 26, 2026  ·  Period: 2026-02-21

Wastewater surveillance offers early community-level infection trends by detecting viruses shed in urine and feces, supporting public health preparedness. Current data shows elevated Influenza A levels, stable RSV, and undetected Influenza B, with overall concentrations in a moderate range.

People shed viruses in urine and feces, which means wastewater can provide early signals of infection trends in the community. This monitoring helps detect changes in virus circulation even when clinical testing decreases. Wastewater surveillance supports public health preparedness by offering a population-level view.

The most recent measurements show Influenza A at 22,360 gene copies per liter, Influenza B not detected, and RSV at 10,440 gene copies per liter. Compared to the past 30 days, Influenza A levels are elevated, while RSV levels are stable. Year-to-date, these concentrations are within a moderate range and do not indicate disease severity.

Table 1 summarizes the combined viral activity over the last seven days, showing current conditions. Table 2 provides the annual historical peaks for context, helping to show whether current levels are unusual compared to past seasons.

RSV, or Respiratory Syncytial Virus, is a common cause of respiratory infections. Influenza A and Influenza B are viruses that cause seasonal flu. RNA is a molecule that carries genetic instructions. PCR is a laboratory method used to detect and amplify genetic material like RNA or DNA.


Table 1: Latest Influenza A, Influenza B, and RSV Levels in Wastewater (last7 Days)
Date Influenza A (gc/L) Influenza B (gc/L) RSV (gc/L)
2026-02-22 22,360 0 10,440
2026-02-21 22,360 0 10,440
2026-02-19 40 0 9,120
2026-02-18 40 0 11,600
2026-02-15 40 0 122,000
2026-02-12 0 0 18,720
2026-02-10 0 0 24,600


Table 2: Highest Yearly Influenza and RSV Levels Detected in Wastewater by Year (as of 2026-02-21)
year Date Influenza A (gc/L) Influenza B (gc/L) RSV (gc/L) Total (gc/L)
2026 2026-01-25 262000 0 54400 316400
2025 2025-12-06 456000 0 44400 500400
2024 2024-10-01 0 0 219200 219200
2023 2023-12-07 50800 1008 828000 879808
2022 2022-12-01 263200 77200 1052000 1392400
2021 2021-11-21 0 0 66400 66400

Data source: Abwassermonitoring: Influenza und RSV
Additional resources: Infectious Diseases Dashboard (IDD), OGD-BS Dashboard: Virenmonitoring im Abwasser

🤖 This text was generated with the assistance of AI. All quantitative statements are derived directly from the dataset listed under Data Source.