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Wastewater (sewage) can be tested to detect traces of infectious diseases circulating in a community, even if people don’t have symptoms. You can use these data as an early warning that levels of infections may be increasing or decreasing in your community.
RSV Current Wastewater Viral Activity Levels Map
RSV Wastewater Monitoring in the U.S.
This interactive map shows the current wastewater viral activity level of RSV (respiratory syncytial virus) for each state or territory.
Wastewater monitoring can detect viruses spreading from one person to another within a community earlier than clinical testing and before people who are sick go to their doctor or hospital. It can also detect infections without symptoms. If you see increased wastewater viral activity levels, it might indicate that there is a higher risk of infection. See how to protect yourself from respiratory viruses.
About the Wastewater Viral Activity Level: The wastewater viral activity level indicates whether the amount of virus in the wastewater is very low, low, moderate, high, or very high. The wastewater viral activity levels may indicate the risk of infection in an area. The wastewater viral activity levels are categorized as follows:
- Up to 4 – Very Low
- Greater than 4 and up to 8 – Low
- Greater than 8 and up to 12 – Moderate
- Greater than 12 and up to 20 – High
- Greater than 20 – Very High
ÐÇ¿ÕÓéÀÖ¹ÙÍø’s Respiratory Illnesses Data Channel recently updated the label of “minimal” to “very low” to improve clarity and better communicate the severity levels associated with respiratory illness activity. ÐÇ¿ÕÓéÀÖ¹ÙÍø’s wastewater data for Influenza A, RSV, and COVID-19 reflect this label change.
This map shows the median wastewater viral activity level of RSV reported by wastewater treatment plants within each state or territory over the previous week. States and territories may have a higher density of sampling sites in certain geographic areas, so the median wastewater viral activity level may not represent the wastewater viral activity level for every community in the state or territory. To learn more on how the wastewater viral activity level is calculated, see Data Methods.
No Data: States or territories without sufficient data to estimate the wastewater viral activity level for the previous week are indicated as “No Data.” A label of “No Data” means that either:
- No data were reported this week from sites within the state or territory
- Data were reported this week, but sites within the state or territory do not have enough data (at least 10 weeks with consistent methodology) to estimate the Wastewater Viral Activity Level in the last week.
Limited Coverage: States or territories with limited coverage means that data for the most recent week are based on a small part (less than 5%) of the population and may not represent viral activity levels for the entire state or territory.
Data Limitations: Wastewater data for RSV may not include data from people who wear diapers, as their waste may be disposed of outside the wastewater system.
