Chart of a specific age group and outcome by vaccination status.

This dataset contains the weekly estimated influenza risk level for each ZIP Code in Chicago. Estimates are made during flu season, which goes from MMWR week 40 to week 20 of the following year.

The risk level is based on observed level of Influenza-Like Illness (ILI). ILI Activity Level is determined as follows: ILI percentage for each ZIP Code for the week is compared to the mean ILI percentage during the non-influenza months (summer months). Level 1 corresponds to an ILI percentage below the mean, level 2 to an ILI percentage less than one standard deviation (SD) above the mean, level 3 to an ILI percentage more than one, but less than two SDs above mean, and so on, with level 10 corresponding to an ILI percentage more than eight SDs above the mean.

For more information on ESSENCE, which compiles the estimates, 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 on which this chart depends is historical only and ends at 5/17/2024. Date is the end date of a seven-day window over which the number of daily deaths is averaged before using population to calculate the rates.

Note that because of delayed reporting, counts from recent dates are likely to be preliminary and to increase as the Department of Public Health gets additional reports.

This dataset on which this chart depends is historical only and ends at 5/17/2024. Does not include hospitalizations with unknown date.

Note that because of delayed reporting, counts from recent dates are likely to be preliminary and to increase as the Department of Public Health gets additional reports.

Public alerts for the Chicago Department of Public Health's (CDPH) Health Alert Network (HAN).

The HAN provides CDPH with the capacity for quick, efficient, reliable, and secure web-based communication with CDPH staff, providers of medical care, laboratories, first responders and other local public health agencies and partners. The HAN facilitates CDPH’s day-to-day activities, including outbreak detection, investigation, and emergency response.

This dataset is published as a convenience to complement the HAN site, itself. While alerts generally are published promptly, for uses involving risk to health and/or life, please contact the HAN team directly to discuss other methods of receiving alerts.

The contents of this dataset, the HAN site, and CDPH's Web site are not intended to be substitutes for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Professional medical advice should not be ignored because of something you have read on this data portal or any CDPH site.

This dataset includes aggregated weekly respiratory virus laboratory data that the Chicago Department of Public Health (CDPH) uses to monitor influenza, COVID-19, respiratory syncytial virus (RSV), and other respiratory virus activity in Chicago. The data represents respiratory viral PCR tests performed by several hospital laboratories in Chicago as well as two commercial laboratories serving Chicago facilities. Data are voluntarily reported on a weekly basis and do not contain patient demographic or geographic information. The data reported represent both Chicago and non-Chicago residents tested by the reporting facility.

The respiratory viruses included are influenza, RSV, SARS-CoV-2, parainfluenza, rhinovirus/enterovirus, adenovirus, human metapneumovirus, and seasonal coronaviruses. Influenza laboratory data are available from 2010-2011 to present; for all other respiratory viruses data are available from 2019-2020 to present.

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.

Please see the parent "Based on" dataset for a description of these data. As noted there, the full dataset includes an "All" age group, which can result in some double-counting when summing totals. This filtered view excludes the "All" records, which may make it easier to use for some purposes.

In Illinois, influenza associated Intensive Care Unit (ICU) hospitalizations are reportable as soon as possible, but within 24 hours. Influenza associated ICU hospitalizations are defined as individuals hospitalized in an ICU with a positive laboratory test for influenza A or B, including specimens identified as influenza A/H3N2, A/H1N1pdm09, and specimens not subtyped (e.g., influenza positive cases by PCR or any rapid test such as EIA).

This dataset represents weekly aggregated information for influenza-associated ICU hospitalizations among Chicago residents, which is a reportable condition in Illinois.

Information includes demographics, influenza laboratory results, vaccination status, and death status.

Column names containing "REPORTED" indicate the number of cases for which the indicated data element was reported. This, rather than the total number of cases, is used to calculate the corresponding percentage.

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.

Comprehensive information about the Chicago Department of Public Health (CDPH)'s mental health clinics and community partners. Providers on this site offer free mental health services to Chicagoans regardless of ability to pay, immigration status, or health insurance. Information includes location of site(s), hours of operation, populations served, specific service types, and contact information.

The previous version of this dataset, linked below, contained additional data elements that were difficult to maintain over time. That dataset is available for historical reference.

This dataset on which this chart depends is historical only and ends at 5/17/2024. Date is the end date of a seven-day window over which the number of daily deaths is averaged before using population to calculate the rates.

Note that because of delayed reporting, counts from recent dates are likely to be preliminary and to increase as the Department of Public Health gets additional reports.

This dataset on which this chart depends is historical only and ends at 5/17/2024. Does not include cases with unknown date and one case from 1/23/2020.

Note that because of delayed reporting, counts from recent dates are likely to be preliminary and to increase as the Department of Public Health gets additional reports.

A filtered view of the West Nile Virus (WNV) Mosquito Test Results dataset that excludes records with zero mosquitoes collected.

This dataset on which this chart depends is historical only and ends at 5/17/2024. Note that because of delayed reporting, counts from recent dates are likely to be preliminary and to increase as the Department of Public Health gets additional reports.

This dataset on which this chart depends is historical only and ends at 5/17/2024. This dataset on which this chart depends is historical only and ends at 5/17/2024. Does not include hospitalizations with unknown date.

Note that because of delayed reporting, counts from recent dates are likely to be preliminary and to increase as the Department of Public Health gets additional reports.

This dataset on which this chart depends is historical only and ends at 5/17/2024. COVID-19 Cases, Deaths, and Hospitalizations by month.

For a version of this chart by individual date, see https://data.cityofchicago.org/d/kxzd-kd6a.

Daily chart of doses of COVID-19 vaccine delivered to Chicago providers by the Department of Public Health. This dataset on which this chart depends is historical only and ends at 12/31/2022