What’s the respiratory-virus “weather” where you are? Updated weekly.
Dec. 8, 2025: Flu levels continue to increase throughout the country, and are now at moderate or high levels in Colorado, Idaho, Louisiana, New Jersey, and New York. COVID levels remain low to very low in most states. RSV also continues to slowly increase, but levels in most places are still relatively low. For information on respiratory disease activity in your area, see Force of Infection’s Outbreak Outlook.
COVID-19 National Wastewater Data
US Centers for Disease Control
This page shows CDC data on COVID-19 in wastewater with a five- to 12-day delay. For example, when the map is updated on April 14, it shows the data for the week ending April 9. Once you get to the page, you’ll need to scroll down to see the map showing the COVID-19 level in wastewater in each state. Click on “Wastewater COVID-19 National and Regional Trends” near the bottom of the page to see the chart shown here, plus more state-by-state info.
When a surge happens, virus levels in wastewater go up first – before case counts or hospitalizations.
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Weekly Influenza Surveillance Report
US Centers for Disease Control
The map on this page is based on how many people see their health care providers because they have a fever plus a cough and/or a sore throat. That group of symptoms is called “influenza-like illness,” or ILI.
The colors on the map tell you how much influenza-like illness has been reported in each state with a one- to two-week delay. For example, when the map is updated on April 14, it shows the data for April 1 – 7.
The levels shown on the map are based on symptoms only, not on test results.
RSV National Wastewater Data
This page shows CDC data on respiratory syncytial virus (RSV) in wastewater with a five- to 12-day delay. For example, when the map is updated on April 14, it shows the data for the week ending April 9. Once you get to the page, you’ll need to scroll down to see the map showing the RSV level in wastewater in each state. Click on “Wastewater RSV National and Regional Trends” near the bottom of the page to see the chart shown here, plus more state-by-state info.
COVID-19, Influenza, and RSV Wastewater Monitoring in the U.S.
Biobot Analytics
Biobot Analytics is a company that tests wastewater from sewers across the country.
This page shows line graphs that track levels of COVID, flu, and RSV in wastewater over time. Each graph shows results for the four regions of the US: The South, the Northeast, the Upper Midwest, and the West.
Wastewater Testing Dashboard
Verily
Verily is a company that tests wastewater from sewers across the country.
On this page, they show line graphs that track the levels of different viruses in wastewater over time. Use the dropdown menu to select the virus you want to see. The four lines in each graph represent regions of the US.
The WastewaterSCAN Dashboard
WastewaterSCAN
On this page, you can look at wastewater data for lots of different viruses, including COVID-19, flu, respiratory syncytial virus (RSV), and more.
Respiratory Illness Index
Walgreens
Walgreens Respiratory Illness Index covers COVID-19 (top) and influenza (flu, bottom).
State and Local COVID-19 Wastewater Dashboards
The COVID-19 Data Dispatch
Roughly half of US states have their own dashboards that track COVID wastewater data. A few local and regional public health offices do, too.
Once you get to the site, scroll down a bit to find the list of links.
COVID-Safe Schools 