WastewaterSCAN

Rare pathogens overview: 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, hepatitis A, measles, and Mpox clade II.

📊 WWSCAN Weekly Data:

Rare pathogens overview: All rare pathogens, other than Mpox clade Ib and West Nile Virus, had at least one detection in the 408 samples collected in the past 10 days. 🛟😷🧪

Norovirus: A line graph showing norovirus concentrations in wastewater over the past year nationally and for four regions. Concentrations are increasing in the south.

📊 WWSCAN Weekly Data:

Norovirus: Norovirus concentrations are increasing in the South.🛟😷🧪

EV-D68: A line graph showing aggregated concentrations of EV-D68 nationally and in each census region. While EV-D68 levels are low nationwide, they have recently increased in all regions, especially in the Midwest.

📊 WWSCAN Weekly Data:

EV-D68: EV-D68 is in the ‘Low’ category nationally and is not in season. Detections have increased nationwide, primarily in a subset of plants in the Midwest and West regions.

Seasonal respiratory pathogens: Line graphs showing concentrations of the four main seasonal respiratory pathogens (Influenza A, Influenza B, RSV, and HMPV) over the past year nationally and for four regions. Most currently have concentrations near 0. The line for RSV has very recently risen above 0, especially in the South.

📊 WWSCAN Weekly Data:

Seasonal respiratory pathogens: Nationally, Flu A, Flu B, RSV, and HMPV are not in season (no “onset” of an event in wastewater). About 2%, 0%, 0%, and 0% of plants are still in onset, respectively. Concentrations of RSV are just beginning to increase in the South. 🛟😷🧪

COVID-19 Variants: 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 Oct 18, 2025, we are seeing the XFG variant in orange make up approximately 83.7% of variants. Note sequencing data has a longer lag of 1-2 weeks after collection.🛟😷🧪

COVID-19 Line Graph: 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 peaked in early September and are decreasing.

📊 WWSCAN Weekly Data:

COVID-19: Nationwide, SARS-CoV-2 is in the ‘Low’ category, with low concentrations and no significant trend over the last 3 weeks. Levels are still decreasing from this summer’s wave.🛟😷🧪

Respiratory weekly update: Dials showing that SARS-CoV-2 is in the low category, and all seasonal pathogens (Influenza A, Influenza B, RSV, HMPV, and EV-D68) are in the low category and not in seasonal onset.

📊 WWSCAN Weekly Data:

Respiratory weekly update: All respiratory viruses we monitor (SARS-CoV-2, RSV, Influenza A, Influenza B, HMPV, and EV-D68) are in the ‘Low’ category nationwide.🛟😷🧪

Wastewater concentrations of rotavirus RNA are associated with infection and vaccination metrics in the USA - npj Viruses npj Viruses - Wastewater concentrations of rotavirus RNA are associated with infection and vaccination metrics in the USA

📣 New WastewaterSCAN publication: Wastewater concentrations of rotavirus RNA are associated with infection and vaccination metrics in the USA

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

📊 WWSCAN Weekly Data:

Rare pathogens overview: All rare pathogens, other than Mpox clade II and Mpox clade Ib, had at least one detection in the 407 samples collected in the past 10 days.🛟😷🧪

Norovirus: A line graph showing norovirus concentrations in wastewater over the past year nationally and for four regions. Concentrations are low nationally, but are slowly increasing in the south.

📊 WWSCAN Weekly Data:

Norovirus: Norovirus concentrations remain low in most regions but are slowly increasing in the South.🛟😷🧪

EV-D68: A line graph showing aggregated concentrations of EV-D68 nationally and in each census region. While EV-D68 levels are low nationwide, they have recently increased substantially in the Midwest, and a small amount in the West.

📊 WWSCAN Weekly Data:

EV-D68: EV-D68 is in the ‘Low’ category nationally and is not in season, but detections have increased at some plants in the Midwest and the West regions.

Seasonal respiratory pathogens: Line graphs showing concentrations of the four main seasonal respiratory pathogens (Influenza A, Influenza B, RSV, and HMPV) over the past year nationally and for four regions. Most currently have concentrations near 0. The line for RSV has very recently risen above 0.

📊 WWSCAN Weekly Data:

Seasonal respiratory pathogens: Nationally, Flu A, Flu B, RSV, and HMPV are not in season (no “onset” of an event in wastewater). About 2%, 0%, 1%, and 0% of plants are still in onset, respectively. 🛟😷🧪

COVID-19 Variants: A bar graph showing the proportions of SARS-CoV-2 variants measured in wastewater over time. Recently the XFG variant has become the most predominant variant.

📊 WWSCAN Weekly Data:

COVID-19 Variants: In sequencing data from a subset of WWSCAN sites from the week of Oct 11, 2025, we are seeing the XFG variant in orange make up approximately 91.1% of variants. Note that sequencing data has a longer lag of 1-2 weeks after collection.🛟😷🧪

COVID-19 Line Graph: 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 peaked in early September and are decreasing.

📊 WWSCAN Weekly Data:

COVID-19: Nationwide, SARS-CoV-2 is in the ‘Medium’ category, with medium concentrations and a downward trend over the last 3 weeks. Levels are still decreasing from this summer’s wave.🛟😷🧪

Respiratory weekly update: Dials showing that all seasonal pathogens (Influenza A, Influenza B, RSV, HMPV, and EV-D68) except SARS-CoV-2 are in the low category and not in seasonal onset. SARS-CoV-2 is in the medium category.

📊 WWSCAN Weekly Data:

Respiratory weekly update: SARS-CoV-2 is in the ‘Medium’ category. All other respiratory viruses we monitor (RSV, Influenza A, Influenza B, HMPV, and EV-D68) are in the ‘Low’ category nationwide.🛟😷🧪

WastewaterSCAN monitors more than a dozen pathogens—from #influenza and other #RespiratoryViruses to measles—at 147 treatment sites across 40 states. This real-time data can help protect communities by detecting disease trends early. 📊

Learn more. wastewaterscan.org

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

📊 WWSCAN Weekly Data:

Rare pathogens overview: All rare pathogens, other than Mpox clade Ib, had at least one detection in the 396 samples collected in the past 10 days. 🛟😷🧪

Norovirus: A line graph showing norovirus concentrations in wastewater over the past year nationally and for four regions. Concentrations are low, but may be slightly increasing in the south.

📊 WWSCAN Weekly Data:

Norovirus: Norovirus is in the ‘Low’ category nationally with low concentrations and no significant trend over the last 3 weeks. Concentrations are slowly increasing in the South.🛟😷🧪

EV-D68: A line graph showing aggregated concentrations of EV-D68 nationally and in each census region. While EV-D68 levels are low nationwide, they have recently increased substantially in the Midwest, and a small amount in the West.

📊 WWSCAN Weekly Data:

EV-D68: EV-D68 is in the ‘Low’ category nationally and is not in season, but detections have increased at some plants in the Midwest and the West regions.

Seasonal respiratory pathogens: Line graphs showing concentrations of the four main seasonal respiratory pathogens (Influenza A, Influenza B, RSV, and HMPV) over the past year nationally and for four regions. Most currently have concentrations near 0. The line for RSV has very recently risen above 0.

📊 WWSCAN Weekly Data:

Seasonal respiratory pathogens: Nationally, Flu A, Flu B, RSV, and HMPV are not in season (no “onset” of an event in wastewater). About 4%, 0%, 1%, and 0% of plants are still in onset, respectively. 🛟😷🧪

COVID-19 Variants: A bar graph showing the proportions of SARS-CoV-2 variants measured in wastewater over time. Recently the XFG variant has become the most predominant variant.

📊 WWSCAN Weekly Data:

COVID-19 Variants: In sequencing data from a subset of WWSCAN sites from the week of Sep 27, 2025, we are seeing the XFG variant in orange make up approximately 93.2% of variants. Note sequencing data has a longer lag of 1-2 weeks after collection. 🛟😷🧪

COVID-19 Line Graph: 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 peaked in early September and are decreasing.

📊 WWSCAN Weekly Data:

COVID-19: Nationwide, SARS-CoV-2 is in the ‘Medium’ category, with medium concentrations and a downward trend over the last 3 weeks. Levels are still decreasing from this summer’s wave.🛟😷🧪

Respiratory weekly update: Dials showing that all seasonal pathogens (Influenza A, Influenza B, RSV, HMPV, and EV-D68) except SARS-CoV-2 are in the low category and not in seasonal onset. SARS-CoV-2 is in the medium category.

📊 WWSCAN Weekly Data:

Respiratory weekly update: SARS-CoV-2 is in the ‘Medium’ category. All other respiratory viruses we monitor (RSV, Influenza A, Influenza B, HMPV and EV-D68) are in the ‘Low’ category nationwide. 🛟😷🧪

Did you know? #Wastewater measurements for respiratory syncytial virus (RSV) in a community represent everyone who’s infected, not just those hospitalized.

#RSV is one of more than a dozen pathogens that WastewaterSCAN monitors nationwide.

Learn more. wastewaterscan.org/en/pathogens#RSV

Respiratory Syncytial Virus (RSV) RNA in Wastewater Settled Solids Reflects RSV Clinical Positivity Rates Wastewater-based epidemiology (WBE) uses concentrations of infectious agent targets in wastewater to infer infection trends in the contributing community. To date, WBE has been used to gain insight in...

*WWSCAN publication highlight*

A key 2022 study from WWSCAN showed that #RSV RNA could be reliably detected in #wastewater solids from Bay Area treatment plants, which strongly correlated with positivity rates from clinical specimens across California.

Read more. pubs.acs.org/doi/10.1021/...

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

📊 WWSCAN Weekly Data:

Rare pathogens overview: All rare pathogens, other than Mpox clade Ib and measles, had at least one detection in the 408 samples collected in the past 10 days.🛟😷🧪

Norovirus: A line graph showing norovirus concentrations in wastewater over the past year nationally and for four regions. Concentrations are low, but may be slightly increasing in the south.

📊 WWSCAN Weekly Data:

Norovirus: Norovirus is in the ‘Medium’ category nationally with low concentrations and an upward trend over the last 3 weeks.🛟😷🧪

EV-D68: While EV-D68 levels are low nationwide, they have recently increased substantially in the Midwest, and a small amount in the West.

📊 WWSCAN Weekly Data:

EV-D68: EV-D68 is in the ‘Low’ category nationally and is not in season, but detections have increased at some plants in the Midwest and the West regions.

Seasonal respiratory pathogens: Line graphs showing concentrations of the four main seasonal respiratory pathogens (Influenza A, Influenza B, RSV, and HMPV) over the past year nationally and for four regions. Most currently have concentrations near 0.

📊 WWSCAN Weekly Data:

Seasonal respiratory pathogens: Nationally, Flu A, Flu B, RSV, and HMPV are not in season (no “onset” of an event in wastewater). About 3%, 0%, 1%, and 0% of plants are still in onset, respectively. 🛟😷🧪

COVID-19 Variants: A bar graph showing the proportions of SARS-CoV-2 variants measured in wastewater over time. Recently the XFG variant has become the most predominant variant.

📊 WWSCAN Weekly Data:

COVID-19 Variants: In sequencing data from a subset of WWSCAN sites from the week of Sep 27, 2025, we are seeing the XFG variant in orange make up approximately 93.2% of variants. Note sequencing data has a longer lag of 1-2 weeks after collection. 🛟😷🧪