This dataset provides a complete time history of Avian Influenza A (H5) wastewater sample data and calculated metrics from US sampling locations. Learn more at: https://www.cdc.gov/nwss/index.html. This dataset is updated weekly on Fridays.

This dataset provides a complete time history of RSV wastewater sample data and calculated metrics from US sampling locations. Learn more at: https://www.cdc.gov/nwss/index.html. This dataset is updated weekly on Fridays.

This dataset provides a complete time history of measles wastewater sample data and calculated metrics from US sampling locations. Learn more at: https://www.cdc.gov/nwss/index.html. This dataset is updated weekly on Fridays.

NOTE: This dataset is no longer being updated but is being kept for historical reference. For current data on respiratory illness visits and respiratory laboratory testing data please see Influenza, COVID-19, RSV, and Other Respiratory Virus Laboratory Surveillance and Inpatient, Emergency Department, and Outpatient Visits for Respiratory Illnesses. This dataset includes aggregated weekly metrics of the surveillance indicators that the Department of Public Health uses to monitor influenza activity in Chicago. These indicators include: - Influenza-associated ICU hospitalizations for Chicago residents, which is a reportable condition in Illinois (HOSP_ columns) - Influenza laboratory data provided by participating sentinel laboratories in Chicago (LAB_ columns) - Influenza-like illness data for outpatient clinic visits and emergency department visits. (ILI_ columns) For more information on ILINET, see https://www.cdc.gov/flu/weekly/overview.htm#anchor_1539281266932. For more information on ESSENCE, see https://www.dph.illinois.gov/data-statistics/syndromic-surveillance All data are provisional and subject to change. Information is updated as additional details are received. At any given time, this dataset reflects data currently known to CDPH. Numbers in this dataset may differ from other public sources.

This dataset provides a complete time history of mpox wastewater sample data and calculated metrics from US sampling locations. Learn more at: https://www.cdc.gov/nwss/index.html. This dataset is updated weekly on Fridays.

This dataset provides a complete time history of SARS-CoV-2 wastewater sample data and calculated metrics from US sampling locations. Learn more at: https://www.cdc.gov/nwss/index.html. This dataset is updated weekly on Fridays.

Upcoming change to the Respiratory Virus Wastewater Surveillance Dataset.

Syndromic surveillance provides public health officials with a timely system for detecting, understanding, and monitoring health events. By tracking symptoms of patients in emergency departments—before a diagnosis is confirmed—public health can detect unusual levels of illness. Syndromic data can serve as an early warning system for public health concerns such as influenza and COVID-19 outbreaks. These data represent the percent of emergency department and urgent care visits related to Influenza Like Illness or COVID Like Illness. Additional Syndromic Surveillance information can be found at https://www.cdc.gov/nssp/overview.html.