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Wastewater (sewage) can be tested to detect traces of infectious diseases circulating in a community, even if people don’t have symptoms. You can use these data as an early warning that levels of infections may be increasing or decreasing in your community.
Wastewater Data for Avian Influenza A(H5)
This interactive map shows current site-level data for avian influenza A(H5) viral RNA detections in wastewater. Each dot on the map represents a wastewater sampling site. For each site, results are reported as “H5 Detection” when any of the samples were positive during the week reported. When avian influenza A(H5) virus is not detected in any of the samples, then the site is classified as “No Detection.” All data are preliminary and may change as more reports are received. Data will be updated on this site every Friday.
Click on the legend below to see detections.
This searchable table shows site-level data for avian influenza A(H5) viral RNA detections in wastewater for the past six weeks. The date in the column header is the last day for that week of sample collection. The table shows if:
+ H5 was detected at the site
– H5 was not detected at a site
No Data No samples were taken for that site or no data is available for that site
- Wastewater surveillance may complement other existing human influenza surveillance systems to monitor influenza. Avian influenza A(H5) virus data in wastewater include data collected and reported to CDC’s National Wastewater Surveillance System (NWSS) by:
- An academic partner group (WastewaterSCAN): These data were collected as part of a partnership between Stanford University, Emory University, and Verily funded philanthropically through a gift to Stanford University. Find more about these and use at: wastewaterscan.org/about/#15.
- State and local public health departments: Data from state and local health departments were reported through the NWSS program and funded through the Epidemiology and Laboratory Capacity for the Prevention and Control of Emerging Infectious Diseases (ELC) Cooperative Agreement.
- Each wastewater sampling site can represent all or part of a sewershed, which is the geographic area contributing wastewater to a sampling location. Sewersheds can encompass populations of varying sizes and may cross county or state boundaries.
- In each wastewater sampling site, wastewater sampling and testing occurs one or more times during the week.
- See Data Methods to learn more about how data is calculated and methodology.