📣 This Friday, WastewaterSCAN postdoctoral fellow Abby Paulos will be discussing the importance of #wastewater monitoring alongside a panel of experts, organized by the @pandemiccenter.bsky.social.
Register below! ⬇️
Measles Map: A map that shows which plants and regions have detected measles in the past 10 days. There have been detections in 2 states in the West (CA and ID).
📊 WWSCAN Weekly Data:
Measles (wild-type): Measles has been detected in 2 states in the West in the last 10 days.🛟😷🧪
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 Candidozyma auris, Mpox clade II, measles, hepatitis A, Mpox clade II and parvovirus. We have begun assigning a category to parvovirus.
📊 WWSCAN Weekly Data:
Rare pathogens overview: Measles, Candidozyma auris, Hepatitis A, parvovirus, and Mpox clade II had at least one detection in the 409 samples collected in the past 10 days. Our other rare pathogens (Mpox Clade Ib and West Nile Virus, and the H5 influenza marker) did not. 🛟😷🧪
Rotavirus: A line graph showing rotavirus concentrations in wastewater since measurements resumed around May. Concentrations in all regions appear to be increasing, with minor brief peaks.
📊 WWSCAN Weekly Data:
Rotavirus: We recently begun assigning a category to rotavirus. It is in the ‘High’ category with high concentrations and no significant trend over the last 3 weeks.🛟😷🧪
Norovirus: 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 a downward trend over the last 3 weeks. This season's Norovirus wave is similar to what we saw during the 2023-2024 season.🛟😷🧪
HMPV: A line graph showing aggregated concentrations of HMPV nationally and in each census region. Levels are high and trends appear to be gradually increasing in some regions.
📊 WWSCAN Weekly Data:
HMPV: Nationwide, HMPV is now in season with a high category due to high concentrations and no significant trend in the last few weeks.🛟😷🧪
Influenza A & B: A line graph showing aggregated concentrations of influenza A and B nationally. Influenza A peaked around January and has quickly decreased. Levels of influenza B mostly increased starting in January and plateaued since March. Levels of influenza B at its peak are much less than influenza A.
📊 WWSCAN Weekly Data:
Influenza A & B: Nationwide, Flu A is now in the low category and is out of season onset, while Flu B is in the high category and levels remain elevated. Flu B typically peaks after Flu A at lower concentrations.🛟😷🧪
RSV: 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 over the last 3 weeks. All regions remain in the high category.🛟😷🧪
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 are decreasing in most regions.
📊 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. Due to lower concentrations impacting sequencing quality, sequencing results will not be presented.🛟😷🧪
Respiratory & gastrointestinal weekly update: Dials showing that respiratory pathogens (Influenza B, RSV, and HMPV) are in the high category and medium category (SARS-CoV-2). The other seasonal pathogens (Influenza A & EV-D68) are in the low category and not in seasonal onset. The two gastrointestinal pathogens (Norovirus and Rotavirus) are in the high category.
📊 WWSCAN Weekly Data:
Respiratory & Gastrointestinal Weekly Update: Influenza B, RSV, HMPV, Norovirus, and Rotavirus are in the high category. SARS-CoV-2 is in the medium category. Influenza A and EV-D68 are in the ‘Low’ category nationwide.🛟😷🧪
Kimberly Franich, Communicable Disease Manager at Southern Nevada Health District, credits WastewaterSCAN’s clear data interpretation and visual presentation for making it simple to inform officials and the local public. See how they use #wastewater data. www.wastewaterscan.org/en/stories
A map that shows which plants and regions have detected measles in the past 10 days. There have been detections in 3 states in the West (CA, UT and ID).
📊 WWSCAN Weekly Data:
Measles (wild-type): Measles has been detected in 3 states in the West in the last 10 days.🛟😷🧪
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 Candidozyma auris, Mpox clade II, measles, hepatitis A, Mpox clade II and parvovirus.
📊 WWSCAN Weekly Data:
Rare pathogens overview: Measles, Candidozyma auris, Hepatitis A, parvovirus, and Mpox clade II had at least one detection in the 423 samples collected in the past 10 days. Our other rare pathogens (Mpox Clade Ib and West Nile Virus, and the H5 influenza marker) did not.🛟😷🧪
A line graph showing rotavirus concentrations in wastewater since measurements resumed around May. Concentrations in all regions appear to be increasing, with minor brief peaks.
📊 WWSCAN Weekly Data:
Rotavirus: We recently begun assigning a category to rotavirus. It is in the ‘High’ category with high concentrations and a downward trend over the last 3 weeks.🛟😷🧪
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 HMPV nationally and in each census region. Levels are high and trends appear to be gradually increasing in some regions.
📊 WWSCAN Weekly Data:
HMPV: Nationwide, HMPV is now in season with a high category due to high concentrations and no significant 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, levels in the Northeast peaked in late March, and all regions appear to be decreasing.
📊 WWSCAN Weekly Data:
Influenza B: Nationwide, Flu B is in season and in the high category due to high concentrations but with no significant trend over the last 3 weeks.🛟😷🧪
A line graph showing aggregated concentrations of Influenza A nationally and in each census region. Levels are decreasing in all regions.
📊 WWSCAN Weekly Data:
Influenza A: Nationwide, Flu A is in the high category due to no significant trend and high concentrations, though concentrations are near the medium level. Concentrations have been decreasing across all regions in the last few months and no longer in season in the South.🛟😷🧪
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 no significant downward or upward trend over the last 3 weeks. 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 Apr 4, 2026, we are seeing the XFG variant in orange make up 100% 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 decreasing in most regions.
📊 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.🛟😷🧪
Dials showing that respiratory pathogens (Influenza A, Influenza B, RSV, and HMPV) are in the high category and medium category (SARS-CoV-2). The other seasonal pathogen (EV-D68) is in the low category and not in seasonal onset. The two gastrointestinal pathogens (Norovirus and Rotavirus) are in the high category.
📊 WWSCAN Weekly Data:
Respiratory & Gastrointestinal Weekly Update:Influenza A, Influenza B, RSV, HMPV, Norovirus, and Rotavirus are in the high category. SARS-CoV-2 is in the medium category. EV-D68 is in the ‘Low’ category nationwide.🛟😷🧪
To wrap up National Public Health Week, we’re recognizing the staff at local wastewater treatment plants that collect and ship #wastewater samples to WastewaterSCAN each week. Because of you, we reliably monitor infectious diseases in 147 communities across the country. Thank you! #NPHW
These advancements have delivered disease surveillance—including wastewater monitoring—vaccines, sanitation, seatbelts and safer workplaces.
Scientific advancements and discoveries have played a central role in improving public health outcomes, helping most children live past the age of five and enabling adults to live longer, healthier lives.
National Public Health Week 2026 invites all Americans to renew their commitment to strengthening the systems, science, and community partnerships that keep us healthy. #NPHW @apha.org
📣 New WastewaterSCAN publication: Wastewater surveillance reveals patterns of antibiotic resistance across the United States
📊 Read more: www.nature.com/articles/s41...
Measles Map: A map that shows which plants and regions have detected measles in the past 10 days. There have been detections in 3 states in the West (CA, ID, and UT) and 2 in the South (TX and GA).
📊 WWSCAN Weekly Data:
Measles (wild-type): Measles has been detected in 3 states in the West and 2 states in the South in the last 10 days.🛟😷🧪
Rare pathogens overview: Dials summarizing detections for all monitored rare pathogens. There were no detections for Mpox clade Ib, Mpox clade II and West Nile Virus, and a low number of detections for Candidozyma auris, measles, hepatitis A, parvovirus and the Influenza H5 marker. We have begun assigning a category to parvovirus.
📊 WWSCAN Weekly Data:
Rare pathogens overview: Measles, Candidozyma auris, Hepatitis A, parvovirus, and the H5 influenza marker had at least one detection in the 431 samples collected in the past 10 days. Our other rare pathogens (Mpox Clade Ib, Mpox clade II and West Nile Virus) did not. 🛟😷🧪
Rotavirus: A line graph showing rotavirus concentrations in wastewater since measurements resumed around May. Concentrations in all regions appear to be increasing, with minor brief peaks.
📊 WWSCAN Weekly Data:
Rotavirus: We have begun assigning a category to rotavirus. It is in the ‘High’ category with high concentrations and no significant trend over the last 3 weeks.🛟😷🧪