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7/ Rare pathogens overview: All rare pathogens, other than Mpox clade Ib and West Nile Virus, had at least one detection in the 404 samples collected in the past 10 days.

6/ Norovirus: Norovirus has medium concentrations in most regions except the West, and concentrations are especially increasing in the South.

5/ 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 West.

4/ Seasonal respiratory pathogens: Nationally, Flu A, Flu B, RSV, and HMPV are not in season (no “onset” of an event in wastewater). About 9%, 0%, 4%, and 0% of plants are still in onset, respectively. Concentrations of RSV are just beginning to increase in the South.

3/ COVID-19 Variants: In sequencing data from a subset of WWSCAN sites from the week of Nov 8, 2025, we are seeing the XFG variant in orange make up approximately 100% of variants. Note sequencing data has a longer lag of 1-2 weeks after collection.

2/ COVID-19: Nationwide, SARS-CoV-2 is in the ‘Medium’ category, with medium concentrations and no significant trend over the last 3 weeks.

1/ 📈 WWSCAN Weekly Data Respiratory weekly update: SARS-CoV-2 is in the medium category, and all other respiratory viruses we monitor (RSV, Influenza A, Influenza B, HMPV and EV-D68) are in the ‘Low’ category nationwide.

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

6/ Norovirus: Norovirus has medium concentrations in most regions except the West, and concentrations are especially increasing in the South.

5/ 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 West.

4/ Seasonal respiratory pathogens: Nationally, Flu A, Flu B, RSV, and HMPV are not in season (no “onset” of an event in wastewater). About 6%, 0%, 4%, and 0% of plants are still in onset, respectively. Concentrations of RSV are just beginning to increase in the South.

3/ COVID-19 Variants: In sequencing data from a subset of WWSCAN sites from the week of Nov 8, 2025, we are seeing the XFG variant in orange make up approximately 100% of variants. Note sequencing data has a longer lag of 1-2 weeks after collection.

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

1/ 📈 WWSCAN Weekly Data Respiratory weekly update: SARS-CoV-2 is in the high category, and all other respiratory viruses we monitor (RSV, Influenza A, Influenza B, HMPV and EV-D68) are in the ‘Low’ category nationwide.

7/ Rare pathogens overview: All rare pathogens, other than Mpox clade Ib and West Nile Virus, had at least one detection in the 440 samples collected in the past 10 days.

6/ Norovirus: Norovirus is in the ‘Medium’ category, with concentrations increasing in the South.

5/ 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.

4/ Seasonal respiratory pathogens: Nationally, Flu A, Flu B, RSV, and HMPV are not in season (no “onset” of an event in wastewater). About 1%, 0%, 0%, and 0% of plants are still in onset, respectively. Concentrations of RSV are just beginning to increase in the South.

3/ COVID-19 Variants: In sequencing data from a subset of WWSCAN sites from the week of Oct 25, 2025, we are seeing the XFG variant in orange make up approximately 98.4% of variants. Note sequencing data has a longer lag of 1-2 weeks after collection.

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