NWSS Wastewater Monitoring in the U.S.

National Wastewater Surveillance System graphic

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 Monitoring Data

Wastewater hero

CDC’s National Wastewater Surveillance System (NWSS) program collects and displays wastewater data from communities across the United States.

Most communities are reporting no detection of mpox in wastewater.

Consistent detection Info from CSV

Intermittent detection Info from CSV

No detection Info from CSV

No recent data Info from CSV

See the data
Mpox virus detection in wastewater in the past 4 weeks, United States
Mpox map