WastewaterSCAN

Wastewater monitoring detects #RespiratoryViruses including influenza and RSV and provides real-time data to protect community health. WastewaterSCAN tests municipal #wastewater at 147 treatment sites across 40 states.

Learn more about what’s circulating near you. wastewaterscan.org

A map that shows which plants and regions have detected measles in the past 10 days. There have been detections in 1 state in the West (UT).

12/ Measles (wild-type): Measles has been detected in 3 states in the last 10 days, 1 in the West, 1 in the Northeast, and 1 in the South.

Dials summarizing detections for all monitored rare pathogens. There were no detections for Mpox clade Ib, Mpox clade II, the Influenza H5 marker, and West Nile Virus, and a low number of detections for Candida auris, measles, and hepatitis A.

11/ Rare pathogens overview: Measles, Candida auris, and Hepatitis A had at least one detection in the 429 samples collected in the past 10 days. Our other rare pathogens (the H5 influenza marker, Mpox Clade Ib, Mpox clade II and West Nile Virus) did not.

A line graph showing rotavirus concentrations in wastewater since measurements resumed around May. Concentrations in all regions except the West appear to be increasing.

10/ Rotavirus: Rotavirus levels are increasing in most regions. We do not calculate a category for rotavirus.

A line graph showing norovirus concentrations in wastewater over the past year nationally and for four regions. Concentrations are higher than in the summer and appear to be plateauing.

9/ Norovirus: Norovirus is in the ‘High’ category nationally, with high concentrations and no significant trend upward or downward trend over the last 3 weeks. This season's Norovirus wave is similar to what we saw during the 2023-2024 season.

A line graph showing aggregated concentrations of EV-D68 nationally and in each census region. Levels were high in the west a few months ago but have decreased substantially.

8/ EV-D68: Nationwide, EV-D68 is in the ‘Low’ category and is not in season. After a few months of elevated levels, the West is now in the ‘Low’ category.

A line graph showing aggregated concentrations of HMPV nationally and in each census region. Levels are high and trends generally appear to be increasing in all regions.

7/ HMPV: Nationwide, HMPV is now in season with a high category due to high concentrations and an upward trend in the last few weeks.

A line graph showing aggregated concentrations of Influenza B nationally and in each census region. Levels in the Midwest peaked in January, then decreased, and now all regions are increasing.

6/ Influenza B: Nationwide, Flu B is in season and in the high category due to high concentrations and an upward trend.

A line graph showing aggregated concentrations of Influenza A nationally and in each census region. Levels are high in all regions but decreasing.

5/ Nationwide, Flu A is in season and in the high category due to high concentrations and a downward trend. Concentrations have been decreasing across all regions in the last few weeks.

A line graph showing aggregated concentrations of RSV nationally and in each census region. Levels are high but look as they may be plateauing. Levels are highest in the Northeast.

4/ RSV: Nationally, RSV is in season (an “onset” of an event in wastewater) with high concentrations and an upward trend. All regions remain in the high category.

A bar graph showing the proportions of SARS-CoV-2 variants measured in wastewater over time. The XFG variant has been the most predominant variant for the past couple months.

3/ COVID-19 Variants: In sequencing data from a subset of WWSCAN sites from the week of Feb 14, 2026, we are seeing the XFG variant in orange make up approximately 74.5% of variants. Note sequencing data has a longer lag of 1-2 weeks after collection.

Line graph showing concentrations of SARS-CoV-2 in wastewater nationally and for four regions (Northeast, South, Midwest, and West) over the past year. Concentrations are currently high, especially for the Midwest and Northeast.

2/ COVID-19: Nationwide, SARS-CoV-2 is in the ‘High’ category, with high concentrations and an upward trend over the last 3 weeks.

Dials showing that Influenza A, Influenza B, SARS-CoV-2, RSV, and HMPV are in the high category, and the other seasonal pathogen (EV-D68) is in the low category and not in seasonal onset.

1/ 📈 WWSCAN Weekly Data

Respiratory weekly update: SARS-CoV-2, Influenza A, Influenza B, RSV, and HMPV are in the high category. EV-D68 is in the ‘Low’ category nationwide.

Meet the Pathogens: HMPV

HMPV is a little late to the party each year, but don’t let that fool you—it packs a real punch. Discovered in 2001, HMPV can cause both upper and lower respiratory disease in people of all ages.

Learn more. wastewaterscan.org/en/pathogens#HMPV
#MeetThePathogens

A map that shows which plants and regions have detected measles in the past 10 days. There have been detections in 1 state in the West (UT), the South (FL), and 1 state in the Northeast (CT).

📊 WWSCAN Weekly Data:

Measles (wild-type): Measles has been detected in 3 states in the last 10 days, 1 in the West, 1 in the Northeast, and 1 in the South.🛟😷🧪

Dials summarizing detections for all monitored rare pathogens. There were no detections for Mpox clade Ib, and West Nile Virus, and a low number of detections for Candida auris, measles, Mpox clade II, the Influenza H5 marker and hepatitis A.

📊 WWSCAN Weekly Data:

Rare pathogens overview: Measles, Candida auris, Hepatitis A, Mpox clade II, and the H5 influenza marker had at least one detection in the 368 samples collected in the past 10 days. Our other rare pathogens (Mpox Clade Ib, and West Nile Virus) did not.🛟😷🧪

A line graph showing rotavirus concentrations in wastewater since measurements resumed around May. Concentrations in all regions except the West appear to be increasing.

📊 WWSCAN Weekly Data:

Rotavirus: Rotavirus levels are increasing in most regions. We do not calculate a category for rotavirus.🛟😷🧪

A line graph showing norovirus concentrations in wastewater over the past year nationally and for four regions. Concentrations are higher than in the summer and appear to be plateauing.

📊 WWSCAN Weekly Data:

Norovirus: Norovirus is in the ‘High’ category nationally, with high concentrations and no significant trend over the last 3 weeks. This season's Norovirus wave is similar to what we saw during the 2023-2024 season.🛟😷🧪

A line graph showing aggregated concentrations of EV-D68 nationally and in each census region. Levels were high in the west a few months ago but have decreased substantially.

📊 WWSCAN Weekly Data:

EV-D68: Nationwide, EV-D68 is in the ‘Low’ category and is not in season. After a few months of elevated levels, the West is now in the ‘Low’ category.🛟😷🧪

A line graph showing aggregated concentrations of HMPV nationally and in each census region. Levels are high and trends generally appear to be increasing in all regions.

📊 WWSCAN Weekly Data:

HMPV: Nationwide, HMPV is now in season with a high category due to high concentrations and a downward trend in the last few weeks.🛟😷🧪

A line graph showing aggregated concentrations of Influenza B nationally and in each census region. Levels in the Midwest peaked in January, then decreased, and now all regions are increasing.

📊 WWSCAN Weekly Data:

Influenza B: Nationwide, Flu B is in season and in the high category due to high concentrations and an upward trend.🛟😷🧪

A line graph showing aggregated concentrations of Influenza A nationally and in each census region. Levels are high in all regions but decreasing.

📊 WWSCAN Weekly Data:

Influenza A: Nationwide, Flu A is in season and in the high category due to high concentrations and a downward trend. Concentrations have been decreasing across all regions in the last few weeks.🛟😷🧪

A line graph showing aggregated concentrations of RSV nationally and in each census region. Levels are high but look as they may be plateauing. Levels are highest in the Northeast.

📊 WWSCAN Weekly Data:

RSV: Nationally, RSV is in season (an “onset” of an event in wastewater) with high concentrations and a downward trend. All regions remain in the high category.🛟😷🧪

A bar graph showing the proportions of SARS-CoV-2 variants measured in wastewater over time. The XFG variant has been the most predominant variant for the past couple months.

📊 WWSCAN Weekly Data:

COVID-19 Variants: In sequencing data from a subset of WWSCAN sites from the week of Feb 7, 2026, we are seeing the XFG variant in orange make up approximately 77.5% of variants. Note sequencing data has a longer lag of 1-2 weeks after collection.🛟😷🧪

Line graph showing concentrations of SARS-CoV-2 in wastewater nationally and for four regions (Northeast, South, Midwest, and West) over the past year. Concentrations are currently high, especially for the Midwest and Northeast.

📊 WWSCAN Weekly Data:

COVID-19:Nationwide, SARS-CoV-2 is in the ‘High’ category, with high concentrations and no significant upward or downward trend over the last 3 weeks.🛟😷🧪

Dials showing that Influenza A, Influenza B, SARS-CoV-2, RSV, and HMPV are in the high category, and the other seasonal pathogen (EV-D68) is in the low category and not in seasonal onset.

📊 WWSCAN Weekly Data:

Respiratory weekly update: SARS-CoV-2, Influenza A, Influenza B, RSV, and HMPV are in the high category. EV-D68 is in the ‘Low’ category nationwide.🛟😷🧪

Levels of RSV are rising in #wastewater nationally. #RSV is one of more than a dozen infectious diseases that #WastewaterSCAN monitors across the country, and we share the data publicly on our online dashboard.

Check levels near you: data.wastewaterscan.org

Happy Valentine’s Day!

Love is in the air—and unfortunately, so are #RespiratoryViruses. Before you head out for date night, check what’s circulating in your community: wastewaterscan.org

Measles Map: A map that shows which plants and regions have detected measles in the past 10 days. There have been detections in 1 state in the West (UT), the South (FL), and 2 states in the Northeast (CT & VT).

📊 WWSCAN Weekly Data:

Measles (wild-type): Measles has been detected in 4 states in the last 10 days, 1 in the West, 2 in the Northeast, and 1 in the South.🛟😷🧪

Rare pathogens overview: Dials summarizing detections for all monitored rare pathogens. There were no detections for the H5 influenza marker, Mpox clade Ib, and West Nile Virus, and a low number of detections for Candida auris, measles, Mpox clade II and hepatitis A.

📊 WWSCAN Weekly Data:

Rare pathogens overview: Measles, Candida auris, Hepatitis A, and Mpox clade II had at least one detection in the 434 samples collected in the past 10 days. Our other rare pathogens (H5 influenza marker, Mpox Clade Ib, and West Nile Virus) did not.🛟😷🧪