About
Population
38 %
Municipalities
172
Plants
30
Duration
53 months
Samples
15.497
Analyses
120.734
Latest sampling date
Monday 10 March
SARS-CoV-2
Low
Influenza
High
RSV
High
In Belgium, the wastewater surveillance allows to follow-up the circulation of three major respiratory viruses of health concerns in the population. The surveillance program started in mid-September 2020 with SARS-CoV-2 (the virus causing COVID-19). Influenza (the virus causing flu) and respiratory syncytial virus (RSV) were added in January 2024. The surveillance covers 38% of the Belgian population.
This tool is based on the analysis of wastewater samples collected once per week on Monday from influents of 30 wastewater treatment plants spread over Belgium, mainly in areas of high population density. Samples are collected over a period of 24 hours and analyzed for the presence of SARS-CoV-2, influenza and RSV.
The evolution of SARS-CoV-2 over time is assessed through two alerting indicators: the High Circulation and the Increasing Trend indicators. These indicators are computed at different geographical levels: national, regional, provincial, and treatment plants. The evolution of influenza and RSV over time is assessed through the number of treatment plants at the national level in which the viruses are detected. A weekly assessment of the SARS-CoV-2, influenza and RSV situation in wastewater is published in the weekly report. Detailed information on the methodology can be found in the methodology appendix. Data are available on the federal geoportal geo.be. General information about the program can be found on the Sciensano website. The dashboard is updated every week on Monday.
SARS-CoV-2: Situation by country, region, province and plant
Interactive geographical overview
Select a layer and then any geographical area on the map to display on the right panel its evolution of the viral load of SARS-CoV2 (the virus causing the COVID-19).
Cube icons are located on the areas. The cubes have two pieces corresponding to the two indicators. The corresponding piece is coloured in the case of an alert for an indicator for the latest sampling date included in the dashboard. In the absence of an alert the piece is greyed out. If no sample was collected, the two pieces are white.
The High Circulation indicator highlights the areas where the the ratio between SARS-CoV2 and PMMoV is high.
The Increasing Trend indicator highlights the areas where the the ratio between SARS-CoV2 and PMMoV is rising since a long period.
The detailed information about how the two indicators are computed can be found in the methodology and the in-depth interpretation of the indicators is available in the weekly assessment (links in section About).
Cube icons are located on the areas. The cubes have two pieces corresponding to the two indicators. The corresponding piece is coloured in the case of an alert for an indicator for the latest sampling date included in the dashboard. In the absence of an alert the piece is greyed out. If no sample was collected, the two pieces are white.
The High Circulation indicator highlights the areas where the the ratio between SARS-CoV2 and PMMoV is high.
The Increasing Trend indicator highlights the areas where the the ratio between SARS-CoV2 and PMMoV is rising since a long period.
The detailed information about how the two indicators are computed can be found in the methodology and the in-depth interpretation of the indicators is available in the weekly assessment (links in section About).
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Evolution of the ratios
The dots represent the ratios between SARS-CoV-2 and PMMoV (10e-4 copies SARS-CoV-2/copies PMMoV).
The curve shows the 14-day rolling average of the ratios between SARS-CoV-2 and PMMoV.
The curve shows the 14-day rolling average of the ratios between SARS-CoV-2 and PMMoV.
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SARS-CoV-2: National situation
Current
Evolution: difference in the number of plants with an alert for the corresponding indicator between the current and the previous week.
The High Circulation indicator highlights the areas where the ratio between SARS-CoV2 and PMMoV is high.
The Increasing Trend indicator highlights the areas where the ratio between SARS-CoV2 and PMMoV is rising since a long period.
The detailed information about how the three indicators are computed can be found in the methodology and the in-depth interpretation of the indicators is available in the weekly assessment (links in section About).
The High Circulation indicator highlights the areas where the ratio between SARS-CoV2 and PMMoV is high.
The Increasing Trend indicator highlights the areas where the ratio between SARS-CoV2 and PMMoV is rising since a long period.
The detailed information about how the three indicators are computed can be found in the methodology and the in-depth interpretation of the indicators is available in the weekly assessment (links in section About).
High Circulation
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Increasing Trend
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Evolution
The High Circulation indicator highlights the areas where the ratio between SARS-CoV2 and PMMoV is high.
The Increasing Trend indicator highlights the areas where the the ratio between SARS-CoV2 and PMMoV is rising since a long period.
The detailed information about how the two indicators are computed can be found in the methodology and the in-depth interpretation of the indicators is available in the weekly assessment (links in section About).
The Increasing Trend indicator highlights the areas where the the ratio between SARS-CoV2 and PMMoV is rising since a long period.
The detailed information about how the two indicators are computed can be found in the methodology and the in-depth interpretation of the indicators is available in the weekly assessment (links in section About).
High Circulation
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Increasing Trend
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Sampling date
INFLUENZA: National situation
Current
Evolution: difference in the number of plants where influenza was detected between the current and the previous week.
The treatment plants monitored are the same than for SARS-CoV-2 and can be found in section SARS-CoV-2: Situation by country, region, province and plant.
More detailed information is available in the weekly assessment (links in section About).
The treatment plants monitored are the same than for SARS-CoV-2 and can be found in section SARS-CoV-2: Situation by country, region, province and plant.
More detailed information is available in the weekly assessment (links in section About).
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Evolution
The treatment plants monitored are the same than for SARS-CoV-2 and can be found in section SARS-CoV-2: Situation by country, region, province and plant.
More detailed information can be found in the weekly assessment (links in section About).
More detailed information can be found in the weekly assessment (links in section About).
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Sampling date
RSV: National situation
Current
Evolution: difference in the number of plants where RSV was detected between the current and the previous week.
The treatment plants monitored are the same than for SARS-CoV-2 and can be found in section SARS-CoV-2: Situation by country, region, province and plant.
More detailed information is available in the weekly assessment (links in section About).
The treatment plants monitored are the same than for SARS-CoV-2 and can be found in section SARS-CoV-2: Situation by country, region, province and plant.
More detailed information is available in the weekly assessment (links in section About).
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Evolution
The treatment plants monitored are the same than for SARS-CoV-2 and can be found in section SARS-CoV-2: Situation by country, region, province and plant.
More detailed information can be found in the weekly assessment (links in section About).
More detailed information can be found in the weekly assessment (links in section About).
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Sampling date
Partners
In collaboration with:
With the fundings:
