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CDC Wastewater Viral Activity Level for SARS-CoV-2, Influenza A and RSV

Published by Centers for Disease Control and Prevention | U.S. Department of Health & Human Services | Catalog Last Checked: May 16, 2026 at 10:21 PM | Dataset Last Updated: May 15, 2026
This dataset provides a complete time history of weekly SARS-CoV-2, Influenza A, and RSV wastewater viral activity level (WVAL) values from US sampling locations. Learn more at: https://www.cdc.gov/wastewater This dataset is updated weekly on Fridays.

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