89 datasets found
  1. O

    COVID-19 Cases, Hospitalizations, and Deaths (By County) - ARCHIVE

    • data.ct.gov
    • catalog.data.gov
    application/rdfxml +5
    Updated Jun 24, 2022
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    Department of Public Health (2022). COVID-19 Cases, Hospitalizations, and Deaths (By County) - ARCHIVE [Dataset]. https://data.ct.gov/w/bfnu-rgqt/wqz6-rhce?cur=XEeQ-ykerEb
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    csv, application/rssxml, tsv, application/rdfxml, json, xmlAvailable download formats
    Dataset updated
    Jun 24, 2022
    Dataset authored and provided by
    Department of Public Health
    License

    U.S. Government Workshttps://www.usa.gov/government-works
    License information was derived automatically

    Description

    Note: DPH is updating and streamlining the COVID-19 cases, deaths, and testing data. As of 6/27/2022, the data will be published in four tables instead of twelve.

    The COVID-19 Cases, Deaths, and Tests by Day dataset contains cases and test data by date of sample submission. The death data are by date of death. This dataset is updated daily and contains information back to the beginning of the pandemic. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-Cases-Deaths-and-Tests-by-Day/g9vi-2ahj.

    The COVID-19 State Metrics dataset contains over 93 columns of data. This dataset is updated daily and currently contains information starting June 21, 2022 to the present. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-State-Level-Data/qmgw-5kp6 .

    The COVID-19 County Metrics dataset contains 25 columns of data. This dataset is updated daily and currently contains information starting June 16, 2022 to the present. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-County-Level-Data/ujiq-dy22 .

    The COVID-19 Town Metrics dataset contains 16 columns of data. This dataset is updated daily and currently contains information starting June 16, 2022 to the present. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-Town-Level-Data/icxw-cada . To protect confidentiality, if a town has fewer than 5 cases or positive NAAT tests over the past 7 days, those data will be suppressed.

    COVID-19 cases, hospitalizations, and associated deaths that have been reported among Connecticut residents. All data in this report are preliminary; data for previous dates will be updated as new reports are received and data errors are corrected. Hospitalization data were collected by the Connecticut Hospital Association and reflect the number of patients currently hospitalized with laboratory-confirmed COVID-19. Deaths reported to the either the Office of the Chief Medical Examiner (OCME) or Department of Public Health (DPH) are included in the daily COVID-19 update.

    Data on Connecticut deaths were obtained from the Connecticut Deaths Registry maintained by the DPH Office of Vital Records. Cause of death was determined by a death certifier (e.g., physician, APRN, medical examiner) using their best clinical judgment. Additionally, all COVID-19 deaths, including suspected or related, are required to be reported to OCME. On April 4, 2020, CT DPH and OCME released a joint memo to providers and facilities within Connecticut providing guidelines for certifying deaths due to COVID-19 that were consistent with the CDCโ€™s guidelines and a reminder of the required reporting to OCME.25,26 As of July 1, 2021, OCME had reviewed every case reported and performed additional investigation on about one-third of reported deaths to better ascertain if COVID-19 did or did not cause or contribute to the death. Some of these investigations resulted in the OCME performing postmortem swabs for PCR testing on individuals whose deaths were suspected to be due to COVID-19, but antemortem diagnosis was unable to be made.31 The OCME issued or re-issued about 10% of COVID-19 death certificates and, when appropriate, removed COVID-19 from the death certificate. For standardization and tabulation of mortality statistics, written cause of death statements made by the certifiers on death certificates are sent to the National Center for Health Statistics (NCHS) at the CDC which assigns cause of death codes according to the International Causes of Disease 10th Revision (ICD-10) classification system.25,26 COVID-19 deaths in this report are defined as those for which the death certificate has an ICD-10 code of U07.1 as either a primary (underlying) or a contributing cause of death. More information on COVID-19 mortality can be found at the following link: https://portal.ct.gov/DPH/Health-Information-Systems--Reporting/Mortality/Mortality-Statistics

    Data are reported daily, with timestamps indicated in the daily briefings posted at: portal.ct.gov/coronavirus. Data are subject to future revision as reporting changes.

    Starting in July 2020, this dataset will be updated every weekday.

    Additional notes: A delay in the data pull schedule occurred on 06/23/2020. Data from 06/22/2020 was processed on 06/23/2020 at 3:30 PM. The normal data cycle resumed with the data for 06/23/2020.

    A network outage on 05/19/2020 resulted in a change in the data pull schedule. Data from 5/19/2020 was processed on 05/20/2020 at 12:00 PM. Data from 5/20/2020 was processed on 5/20/2020 8:30 PM. The normal data cycle resumed on 05/20/2020 with the 8:30 PM data pull. As a result of the network outage, the timestamp on the datasets on the Open Data Portal differ from the timestamp in DPH's daily PDF reports.

    Starting 5/10/2021, the date field will represent the date this data was updated on data.ct.gov. Previously the date the data was pulled by DPH was listed, which typically coincided with the date before the data was published on data.ct.gov. This change was made to standardize the COVID-19 data sets on data.ct.gov.

    On 5/16/2022, 8,622 historical cases were included in the data. The date range for these cases were from August 2021 โ€“ April 2022.โ€

  2. v

    COVID-19 Cases and Deaths by Age Group - ARCHIVE

    • res1catalogd-o-tdatad-o-tgov.vcapture.xyz
    Updated Aug 12, 2023
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    data.ct.gov (2023). COVID-19 Cases and Deaths by Age Group - ARCHIVE [Dataset]. https://res1catalogd-o-tdatad-o-tgov.vcapture.xyz/dataset/covid-19-cases-and-deaths-by-age-group
    Explore at:
    Dataset updated
    Aug 12, 2023
    Dataset provided by
    data.ct.gov
    Description

    Note: DPH is updating and streamlining the COVID-19 cases, deaths, and testing data. As of 6/27/2022, the data will be published in four tables instead of twelve. The COVID-19 Cases, Deaths, and Tests by Day dataset contains cases and test data by date of sample submission. The death data are by date of death. This dataset is updated daily and contains information back to the beginning of the pandemic. The data can be found at https://res1datad-o-tctd-o-tgov.vcapture.xyz/Health-and-Human-Services/COVID-19-Cases-Deaths-and-Tests-by-Day/g9vi-2ahj. The COVID-19 State Metrics dataset contains over 93 columns of data. This dataset is updated daily and currently contains information starting June 21, 2022 to the present. The data can be found at https://res1datad-o-tctd-o-tgov.vcapture.xyz/Health-and-Human-Services/COVID-19-State-Level-Data/qmgw-5kp6 . The COVID-19 County Metrics dataset contains 25 columns of data. This dataset is updated daily and currently contains information starting June 16, 2022 to the present. The data can be found at https://res1datad-o-tctd-o-tgov.vcapture.xyz/Health-and-Human-Services/COVID-19-County-Level-Data/ujiq-dy22 . The COVID-19 Town Metrics dataset contains 16 columns of data. This dataset is updated daily and currently contains information starting June 16, 2022 to the present. The data can be found at https://res1datad-o-tctd-o-tgov.vcapture.xyz/Health-and-Human-Services/COVID-19-Town-Level-Data/icxw-cada . To protect confidentiality, if a town has fewer than 5 cases or positive NAAT tests over the past 7 days, those data will be suppressed. COVID-19 cases and associated deaths that have been reported among Connecticut residents, broken out by age group. All data in this report are preliminary; data for previous dates will be updated as new reports are received and data errors are corrected. Deaths reported to the either the Office of the Chief Medical Examiner (OCME) or Department of Public Health (DPH) are included in the daily COVID-19 update. Data are reported daily, with timestamps indicated in the daily briefings posted at: portal.ct.gov/coronavirus. Data are subject to future revision as reporting changes. Starting in July 2020, this dataset will be updated every weekday. Additional notes: A delay in the data pull schedule occurred on 06/23/2020. Data from 06/22/2020 was processed on 06/23/2020 at 3:30 PM. The normal data cycle resumed with the data for 06/23/2020. A network outage on 05/19/2020 resulted in a change in the data pull schedule. Data from 5/19/2020 was processed on 05/20/2020 at 12:00 PM. Data from 5/20/2020 was processed on 5/20/2020 8:30 PM. The normal data cycle resumed on 05/20/2020 with the 8:30 PM data pull. As a result of the network outage, the timestamp on the datasets on the Open Data Portal differ from the timestamp in DPH's daily PDF reports. Starting 5/10/2021, the date field will represent the date this data was updated on data.ct.gov. Previously the date the data was pulled by DPH was listed, which typically coincided with the date before the data was published on data.ct.gov. This change was made to standardize the COVID-19 data sets on data.ct.gov.

  3. H

    Data from: COVID19-CT-Dataset: An Open-Access Chest CT Image Repository of...

    • dataverse.harvard.edu
    Updated Feb 19, 2021
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    Sayyed Mostafa Mostafavi (2021). COVID19-CT-Dataset: An Open-Access Chest CT Image Repository of 1000+ Patients with Confirmed COVID-19 Diagnosis [Dataset]. http://doi.org/10.7910/DVN/6ACUZJ
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    CroissantCroissant is a format for machine-learning datasets. Learn more about this at mlcommons.org/croissant.
    Dataset updated
    Feb 19, 2021
    Dataset provided by
    Harvard Dataverse
    Authors
    Sayyed Mostafa Mostafavi
    License

    CC0 1.0 Universal Public Domain Dedicationhttps://creativecommons.org/publicdomain/zero/1.0/
    License information was derived automatically

    Description

    CT images of subjects with confirmed lung infections after positive Covid-19 diagnosis

  4. d

    COVID-19 Contact Tracing: COVID Alert CT Summary by Week - ARCHIVE

    • catalog.data.gov
    • data.ct.gov
    Updated Jun 28, 2025
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    data.ct.gov (2025). COVID-19 Contact Tracing: COVID Alert CT Summary by Week - ARCHIVE [Dataset]. https://catalog.data.gov/dataset/covid-19-contact-tracing-covid-alert-ct-summary-by-week
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    Dataset updated
    Jun 28, 2025
    Dataset provided by
    data.ct.gov
    Area covered
    Connecticut
    Description

    Note: This dataset has been archived and is no longer being updated. COVID Alert CT is Connecticut's voluntary, anonymous, exposure-notification smartphone app. If downloaded, the app will alert users if they have come into close contact with somebody who tests positive for COVID-19. This dataset includes the cumulative and weekly activations for COVID Alert CT for iOS and Android smartphones. The location of app users is not tracked--the app uses Bluetooth technology to detect when another person with the same app comes within 6 feet. The phones exchange a secure code with the each other to record that they were near. The number of codes issued and claimed is also included in this dataset. Data presented are based on a weekly reporting period (Sunday - Saturday). All data are preliminary and are subject to change. Additional information on COVID-19 Contact Tracing can be found here: https://portal.ct.gov/coronavirus/covidalertCT/homepage

  5. COVID-19 State Profile Report - Connecticut

    • healthdata.gov
    • data.virginia.gov
    • +2more
    application/rdfxml +5
    Updated Jan 27, 2021
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    White House COVID-19 Team, Joint Coordination Cell, Data Strategy and Execution Workgroup (2021). COVID-19 State Profile Report - Connecticut [Dataset]. https://healthdata.gov/Community/COVID-19-State-Profile-Report-Connecticut/fkqu-6qqx
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    csv, application/rdfxml, json, xml, application/rssxml, tsvAvailable download formats
    Dataset updated
    Jan 27, 2021
    Dataset authored and provided by
    White House COVID-19 Team, Joint Coordination Cell, Data Strategy and Execution Workgroup
    License

    https://www.usa.gov/government-workshttps://www.usa.gov/government-works

    Area covered
    Connecticut
    Description

    After over two years of public reporting, the State Profile Report will no longer be produced and distributed after February 2023. The final release was on February 23, 2023. We want to thank everyone who contributed to the design, production, and review of this report and we hope that it provided insight into the data trends throughout the COVID-19 pandemic. Data about COVID-19 will continue to be updated at CDCโ€™s COVID Data Tracker.

    The State Profile Report (SPR) is generated by the Data Strategy and Execution Workgroup in the Joint Coordination Cell, in collaboration with the White House. It is managed by an interagency team with representatives from multiple agencies and offices (including the United States Department of Health and Human Services (HHS), the Centers for Disease Control and Prevention, the HHS Assistant Secretary for Preparedness and Response, and the Indian Health Service). The SPR provides easily interpretable information on key indicators for each state, down to the county level.

    It is a weekly snapshot in time that:

    • Focuses on recent outcomes in the last seven days and changes relative to the month prior
    • Provides additional contextual information at the county level for each state, and includes national level information
    • Supports rapid visual interpretation of results with color thresholds

  6. d

    COVID-19 Cases and Deaths by Gender - ARCHIVE

    • catalog.data.gov
    • data.ct.gov
    Updated Aug 12, 2023
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    data.ct.gov (2023). COVID-19 Cases and Deaths by Gender - ARCHIVE [Dataset]. https://catalog.data.gov/dataset/covid-19-cases-and-deaths-by-gender
    Explore at:
    Dataset updated
    Aug 12, 2023
    Dataset provided by
    data.ct.gov
    Description

    Note: DPH is updating and streamlining the COVID-19 cases, deaths, and testing data. As of 6/27/2022, the data will be published in four tables instead of twelve. The COVID-19 Cases, Deaths, and Tests by Day dataset contains cases and test data by date of sample submission. The death data are by date of death. This dataset is updated daily and contains information back to the beginning of the pandemic. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-Cases-Deaths-and-Tests-by-Day/g9vi-2ahj. The COVID-19 State Metrics dataset contains over 93 columns of data. This dataset is updated daily and currently contains information starting June 21, 2022 to the present. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-State-Level-Data/qmgw-5kp6 . The COVID-19 County Metrics dataset contains 25 columns of data. This dataset is updated daily and currently contains information starting June 16, 2022 to the present. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-County-Level-Data/ujiq-dy22 . The COVID-19 Town Metrics dataset contains 16 columns of data. This dataset is updated daily and currently contains information starting June 16, 2022 to the present. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-Town-Level-Data/icxw-cada . To protect confidentiality, if a town has fewer than 5 cases or positive NAAT tests over the past 7 days, those data will be suppressed. COVID-19 cases and associated deaths that have been reported among Connecticut residents, broken down by gender. All data in this report are preliminary; data for previous dates will be updated as new reports are received and data errors are corrected. Deaths reported to the either the Office of the Chief Medical Examiner (OCME) or Department of Public Health (DPH) are included in the daily COVID-19 update. Data on Connecticut deaths were obtained from the Connecticut Deaths Registry maintained by the DPH Office of Vital Records. Cause of death was determined by a death certifier (e.g., physician, APRN, medical examiner) using their best clinical judgment. Additionally, all COVID-19 deaths, including suspected or related, are required to be reported to OCME. On April 4, 2020, CT DPH and OCME released a joint memo to providers and facilities within Connecticut providing guidelines for certifying deaths due to COVID-19 that were consistent with the CDCโ€™s guidelines and a reminder of the required reporting to OCME.25,26 As of July 1, 2021, OCME had reviewed every case reported and performed additional investigation on about one-third of reported deaths to better ascertain if COVID-19 did or did not cause or contribute to the death. Some of these investigations resulted in the OCME performing postmortem swabs for PCR testing on individuals whose deaths were suspected to be due to COVID-19, but antemortem diagnosis was unable to be made.31 The OCME issued or re-issued about 10% of COVID-19 death certificates and, when appropriate, removed COVID-19 from the death certificate. For standardization and tabulation of mortality statistics, written cause of death statements made by the certifiers on death certificates are sent to the National Center for Health Statistics (NCHS) at the CDC which assigns cause of death codes according to the International Causes of Disease 10th Revision (ICD-10) classification system.25,26 COVID-19 deaths in this report are defined as those for which the death certificate has an ICD-10 code of U07.1 as either a primary (underlying) or a contributing cause of death. More information on COVID-19 mortality can be found at the following link: https://portal.ct.gov/DPH/Health-Information-Systems--Reporting/Mortality/Mortality-Statistics Data are reported daily, with timestamps indicated in the daily briefings posted at: portal.ct.gov/coronavirus. Data are subject to future revision as reporting changes. Starting in Ju

  7. v

    COVID-19 Vaccine Allocation - ARCHIVE

    • res1catalogd-o-tdatad-o-tgov.vcapture.xyz
    • data.ct.gov
    • +2more
    Updated Aug 12, 2023
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    data.ct.gov (2023). COVID-19 Vaccine Allocation - ARCHIVE [Dataset]. https://res1catalogd-o-tdatad-o-tgov.vcapture.xyz/dataset/covid-19-vaccine-allocation
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    Dataset updated
    Aug 12, 2023
    Dataset provided by
    data.ct.gov
    Description

    As of 5/27/2021, this dataset is no longer being updated. More data on COVID-19 in Connecticut can be accessed here: data.ct.gov/coronavirus. Total weekly allocations of COVID-19 vaccines in Connecticut, broken out by allocations to the State, to pharmacies, and to FQHCs. All data in this report are preliminary; data for previous dates will be updated as new reports are received and data errors are corrected.

  8. h

    covid-dataset-CT-images

    • huggingface.co
    Updated Sep 10, 2022
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    WALEED ABBAS (2022). covid-dataset-CT-images [Dataset]. https://huggingface.co/datasets/Waleed-bin-Qamar/covid-dataset-CT-images
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    Dataset updated
    Sep 10, 2022
    Authors
    WALEED ABBAS
    Description

    Waleed-bin-Qamar/covid-dataset-CT-images dataset hosted on Hugging Face and contributed by the HF Datasets community

  9. d

    COVID-19 Cases in CT Schools (Statewide), 2021-2022 School Year - Archive

    • catalog.data.gov
    • data.ct.gov
    Updated Jun 28, 2025
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    data.ct.gov (2025). COVID-19 Cases in CT Schools (Statewide), 2021-2022 School Year - Archive [Dataset]. https://catalog.data.gov/dataset/covid-19-cases-in-ct-schools-statewide-2021-2022-school-year
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    Dataset updated
    Jun 28, 2025
    Dataset provided by
    data.ct.gov
    Area covered
    Connecticut
    Description

    This dataset provides the number of weekly COVID-19 cases for staff and students in CT public and private PK-12 schools during the 2021-2022 school year. The following metrics are included: Number of student cases - total Number of student cases - fully vaccinated June 30, 2022 is the last report for the 2021 โ€“ 2022 academic school year. Number of student cases - not vaccinated Number of student cases - no vaccine information Number of staff cases - total Number of staff cases - fully vaccinated Number of staff cases - not vaccinated Number of staff cases - no vaccine information Data for the 2020-2021 school year is available here: https://data.ct.gov/Health-and-Human-Services/COVID-19-Cases-in-CT-Schools-Statewide-2020-2021-S/ehua-hw73

  10. d

    CT DPH COVID -19 Race and Ethnicity Data Summary

    • catalog.data.gov
    • data.ct.gov
    • +1more
    Updated Jul 5, 2025
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    data.ct.gov (2025). CT DPH COVID -19 Race and Ethnicity Data Summary [Dataset]. https://catalog.data.gov/dataset/ct-dph-covid-19-race-and-ethnicity-data-summary
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    Dataset updated
    Jul 5, 2025
    Dataset provided by
    data.ct.gov
    Area covered
    Connecticut
    Description

    This report summarizes data on COVID-19 cases and COVID-19 associated deaths by race/ethnicity for the state of Connecticut and the 10 largest Connecticut towns. Data on race/ethnicity are missing on almost half (47%) of reported COVID-19 cases. CT DPH has urged healthcare providers and laboratories to complete information on race/ethnicity for all COVID-19 cases. All data in this report are preliminary; data will be updated as new COVID-19 case reports are received and data errors are corrected. Data on COVID-19 cases and COVID-19-associated deaths were last updated on April 20, 2020 at 3 PM. Information about race and ethnicity are collected on the Connecticut Department of Public Health (DPH) COVID-19 case report form, which is completed by healthcare providers for laboratory-confirmed COVID-19 cases. Information about the race/ethnicity of COVID-19-associated deaths also are collected by the Connecticut Office of the Chief Medical Examiner and shared with DPH. Race/ethnicity categories used in this report are mutually exclusive. People answering โ€˜yesโ€™ to more than one race category are counted as โ€˜otherโ€™.

  11. O

    COVID-19 Town Level Data - Archive

    • data.ct.gov
    • gimi9.com
    • +2more
    application/rdfxml +5
    Updated Jun 1, 2023
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    CT DPH (2023). COVID-19 Town Level Data - Archive [Dataset]. https://data.ct.gov/w/icxw-cada/wqz6-rhce?cur=aYAcgDYmOjX
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    csv, xml, tsv, application/rdfxml, json, application/rssxmlAvailable download formats
    Dataset updated
    Jun 1, 2023
    Dataset authored and provided by
    CT DPH
    License

    U.S. Government Workshttps://www.usa.gov/government-works
    License information was derived automatically

    Description

    Town Level COVID-19 Data

    As of 6/1/2023, this data set is no longer being updated.

    The COVID-19 Data Report is posted on the Open Data Portal every day at 3pm. The report uses data from multiple sources, including external partners; if data from external partners are not received by 3pm, they are not available for inclusion in the report and will not be displayed. Data that are received after 3pm will still be incorporated and published in the next report update.

    Suppression: the data in towns with fewer than five (5) cases or five (5) positive NAAT tests in the past seven (7) days are suppressed.

    The cumulative number of COVID-19 cases (cumulative_cases) includes all cases of COVID-19 that have ever been reported to DPH. The cumulative number of COVID_19 cases in the last 7 days (cases_7days) only includes cases where the specimen collection date is within the past 7 days. While most cases are reported to DPH within 48 hours of specimen collection, there are a small number of cases that routinely are delayed, and will have specimen collection dates that fall outside of the rolling 7 day reporting window. Additionally, reporting entities may submit correction files to contribute historic data during initial onboarding or to address data quality issues; while this is rare, these correction files may cause a large amount of data from outside of the current reporting window to be uploaded in a single day; this would result in the change in cumulative_cases being much larger than the value of cases_7days.

    On June 4, 2020, the US Department of Health and Human Services issued guidance requiring the reporting of positive and negative test results for SARS-CoV-2; this guidance expired with the end of the federal PHE on 5/11/2023, and negative SARS-CoV-2 results were removed from the List of Reportable Laboratory Findings. DPH will no longer be reporting metrics that were dependent on the collection of negative test results, specifically total tests performed or percent positivity. Positive antigen and PCR/NAAT results will continue to be reportable.

  12. O

    CT School Learning Model Indicators by County (14-day metrics) - ARCHIVE

    • data.ct.gov
    • s.cnmilf.com
    • +1more
    application/rdfxml +5
    Updated Aug 5, 2021
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    CT DPH (2021). CT School Learning Model Indicators by County (14-day metrics) - ARCHIVE [Dataset]. https://data.ct.gov/Health-and-Human-Services/CT-School-Learning-Model-Indicators-by-County-14-d/e4bh-ax24
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    application/rdfxml, xml, tsv, json, csv, application/rssxmlAvailable download formats
    Dataset updated
    Aug 5, 2021
    Dataset authored and provided by
    CT DPH
    License

    U.S. Government Workshttps://www.usa.gov/government-works
    License information was derived automatically

    Area covered
    Connecticut
    Description

    NOTE: This dataset pertains only to the 2020-2021 school year and is no longer being updated. For additional data on COVID-19, visit data.ct.gov/coronavirus.

    This dataset includes the leading and secondary metrics identified by the Connecticut Department of Health (DPH) and the Department of Education (CSDE) to support local district decision-making on the level of in-person, hybrid (blended), and remote learning model for Pre K-12 education.

    Data represent daily averages for two-week periods by date of specimen collection (cases and positivity), date of hospital admission, or date of ED visit. Hospitalization data come from the Connecticut Hospital Association and are based on hospital location, not county of patient residence. COVID-19-like illness includes fever and cough or shortness of breath or difficulty breathing or the presence of coronavirus diagnosis code and excludes patients with influenza-like illness. All data are preliminary.

    These data are updated weekly and reflect the previous two full Sunday-Saturday (MMWR) weeks (https://wwwn.cdc.gov/nndss/document/MMWR_week_overview.pdf).

    These metrics were adapted from recommendations by the Harvard Global Institute and supplemented by existing DPH measures.

    For national data on COVID-19, see COVID View, the national weekly surveillance summary of U.S. COVID-19 activity, at https://www.cdc.gov/coronavirus/2019-ncov/covid-data/covidview/index.html

    DPH note about change from 7-day to 14-day metrics: Prior to 10/15/2020, these metrics were calculated using a 7-day average rather than a 14-day average. The 7-day metrics are no longer being updated as of 10/15/2020 but the archived dataset can be accessed here: https://data.ct.gov/Health-and-Human-Services/CT-School-Learning-Model-Indicators-by-County/rpph-4ysy

    As you know, we are learning more about COVID-19 all the time, including the best ways to measure COVID-19 activity in our communities. CT DPH has decided to shift to 14-day rates because these are more stable, particularly at the town level, as compared to 7-day rates. In addition, since the school indicators were initially published by DPH last summer, CDC has recommended 14-day rates and other states (e.g., Massachusetts) have started to implement 14-day metrics for monitoring COVID transmission as well.

    With respect to geography, we also have learned that many people are looking at the town-level data to inform decision making, despite emphasis on the county-level metrics in the published addenda. This is understandable as there has been variation within counties in COVID-19 activity (for example, rates that are higher in one town than in most other towns in the county).

  13. O

    COVID-19 Vaccinations by Week - ARCHIVED

    • data.ct.gov
    • catalog.data.gov
    • +1more
    application/rdfxml +5
    Updated Feb 9, 2023
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    Department of Public Health (2023). COVID-19 Vaccinations by Week - ARCHIVED [Dataset]. https://data.ct.gov/Health-and-Human-Services/COVID-19-Vaccinations-by-Week-ARCHIVED/5azy-n6sh
    Explore at:
    csv, application/rssxml, json, xml, tsv, application/rdfxmlAvailable download formats
    Dataset updated
    Feb 9, 2023
    Dataset authored and provided by
    Department of Public Health
    License

    U.S. Government Workshttps://www.usa.gov/government-works
    License information was derived automatically

    Description

    NOTE: As of 2/16/2023, this page is not being updated. For data on COVID-19 Updated (Bivalent) Booster Vaccinations by Week go to https://data.ct.gov/Health-and-Human-Services/COVID-19-Updated-Bivalent-Booster-Vaccinations-By-/qh93-7j6n.

    Total Number of first COVID-19 Vaccination doses Given by Week Administered. The date represents the last day of each week presented. Weeks are based on the CDC MMWR week (Sunday - Saturday). Vaccine administration records received by the CT Immunization Information System (CT WiZ). Does not include bivalent booster data. All data in this report are preliminary; data for previous dates will be updated as new reports are received and data errors are corrected.

  14. O

    COVID-19 Test Results by Date of Specimen Collection (By County) - ARCHIVE

    • data.ct.gov
    • s.cnmilf.com
    • +2more
    application/rdfxml +5
    Updated Jun 24, 2022
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    Department of Public Health (2022). COVID-19 Test Results by Date of Specimen Collection (By County) - ARCHIVE [Dataset]. https://data.ct.gov/Health-and-Human-Services/COVID-19-Test-Results-by-Date-of-Specimen-Collecti/qfkt-uahj
    Explore at:
    csv, application/rssxml, json, application/rdfxml, xml, tsvAvailable download formats
    Dataset updated
    Jun 24, 2022
    Dataset authored and provided by
    Department of Public Health
    License

    U.S. Government Workshttps://www.usa.gov/government-works
    License information was derived automatically

    Description

    DPH is updating and streamlining the COVID-19 cases, deaths, and testing data. As of 6/27/2022, the data will be published in four tables instead of twelve.

    The COVID-19 Cases, Deaths, and Tests by Day dataset contains cases and test data by date of sample submission. The death data are by date of death. This dataset is updated daily and contains information back to the beginning of the pandemic. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-Cases-Deaths-and-Tests-by-Day/g9vi-2ahj.

    The COVID-19 State Metrics dataset contains over 93 columns of data. This dataset is updated daily and currently contains information starting June 21, 2022 to the present. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-State-Level-Data/qmgw-5kp6 .

    The COVID-19 County Metrics dataset contains 25 columns of data. This dataset is updated daily and currently contains information starting June 16, 2022 to the present. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-County-Level-Data/ujiq-dy22 .

    The COVID-19 Town Metrics dataset contains 16 columns of data. This dataset is updated daily and currently contains information starting June 16, 2022 to the present. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-Town-Level-Data/icxw-cada . To protect confidentiality, if a town has fewer than 5 cases or positive NAAT tests over the past 7 days, those data will be suppressed.

    COVID-19 test results by date of specimen collection, including total, positive, negative, and indeterminate for molecular and antigen tests. Molecular tests reported include polymerase chain reaction (PCR) and nucleic acid amplicfication (NAAT) tests.

    Test results may be reported several days after the result. Data are incomplete for the most recent days. Data from previous dates are routinely updated. Records with a null date field summarize tests reported that were missing the date of collection.

    Starting in July 2020, this dataset will be updated every weekday.

  15. O

    COVID-19 cases by county last day

    • data.ct.gov
    application/rdfxml +5
    Updated Jun 24, 2022
    + more versions
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    Department of Public Health (2022). COVID-19 cases by county last day [Dataset]. https://data.ct.gov/Health-and-Human-Services/COVID-19-cases-by-county-last-day/t9fq-t5gh
    Explore at:
    application/rdfxml, csv, json, tsv, application/rssxml, xmlAvailable download formats
    Dataset updated
    Jun 24, 2022
    Dataset authored and provided by
    Department of Public Health
    License

    U.S. Government Workshttps://www.usa.gov/government-works
    License information was derived automatically

    Description

    Laboratory-confirmed cases of COVID-19 that have been reported among Connecticut residents. All data in this report are preliminary; data for previous dates will be updated as new reports are received and data errors are corrected. Hospitalization data were collected by the Connecticut Hospital Association. Deaths reported to the either the Office of the Chief Medical Examiner (OCME) or Department of Public Health (DPH) are included in the daily COVID-19 update.

    Data are reported daily, with timestamps indicated in the daily briefings posted at: portal.ct.gov/coronavirus. Data are subject to future revision as reporting changes.

  16. O

    COVID-19 County Level Data - Archive

    • data.ct.gov
    • datasets.ai
    • +1more
    application/rdfxml +5
    Updated Jun 1, 2023
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    CT DPH (2023). COVID-19 County Level Data - Archive [Dataset]. https://data.ct.gov/w/ujiq-dy22/wqz6-rhce?cur=UfrY0AD0z19&from=vDRNfiWJJot
    Explore at:
    xml, csv, tsv, json, application/rssxml, application/rdfxmlAvailable download formats
    Dataset updated
    Jun 1, 2023
    Dataset authored and provided by
    CT DPH
    License

    U.S. Government Workshttps://www.usa.gov/government-works
    License information was derived automatically

    Description

    Covid-19 Daily metrics at the county level

    As of 6/1/2023, this data set is no longer being updated.

    The COVID-19 Data Report is posted on the Open Data Portal every day at 3pm. The report uses data from multiple sources, including external partners; if data from external partners are not received by 3pm, they are not available for inclusion in the report and will not be displayed. Data that are received after 3pm will still be incorporated and published in the next report update.

    The cumulative number of COVID-19 cases (cumulative_cases) includes all cases of COVID-19 that have ever been reported to DPH. The cumulative number of COVID_19 cases in the last 7 days (cases_7days) only includes cases where the specimen collection date is within the past 7 days. While most cases are reported to DPH within 48 hours of specimen collection, there are a small number of cases that routinely are delayed, and will have specimen collection dates that fall outside of the rolling 7 day reporting window. Additionally, reporting entities may submit correction files to contribute historic data during initial onboarding or to address data quality issues; while this is rare, these correction files may cause a large amount of data from outside of the current reporting window to be uploaded in a single day; this would result in the change in cumulative_cases being much larger than the value of cases_7days.

    On June 4, 2020, the US Department of Health and Human Services issued guidance requiring the reporting of positive and negative test results for SARS-CoV-2; this guidance expired with the end of the federal PHE on 5/11/2023, and negative SARS-CoV-2 results were removed from the List of Reportable Laboratory Findings. DPH will no longer be reporting metrics that were dependent on the collection of negative test results, specifically total tests performed or percent positivity. Positive antigen and PCR/NAAT results will continue to be reportable.

  17. COVID-19 CT image

    • kaggle.com
    zip
    Updated Nov 19, 2020
    + more versions
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    eng_esraahassan (2020). COVID-19 CT image [Dataset]. https://www.kaggle.com/engesraahassan/covid19-ct-image
    Explore at:
    zip(76937902 bytes)Available download formats
    Dataset updated
    Nov 19, 2020
    Authors
    eng_esraahassan
    Description

    Dataset

    This dataset was created by eng_esraahassan

    Contents

    It contains the following files:

  18. d

    COVID-19 in Correctional Facilities

    • catalog.data.gov
    • data.ct.gov
    Updated Sep 8, 2023
    + more versions
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    data.ct.gov (2023). COVID-19 in Correctional Facilities [Dataset]. https://catalog.data.gov/dataset/covid-19-in-correctional-facilities
    Explore at:
    Dataset updated
    Sep 8, 2023
    Dataset provided by
    data.ct.gov
    Description

    June 8, 2023: Daily transmission is no longer available. Summary of COVID-19 statistics for Connecticut correctional facilities including: Total # of Staff Positive for COVID-19 Total # of Inmates Pos. for COVID-19 COVID-19 Pos. Inmates Housed at Northern CI Medical Isolation Unit COVID-19 Pos. Inmates Housed at MacDougall-Walker Medical Isolation Unit COVID-19 Pos. Staff Returned to Work Total # of Inmates Medically Cleared Total # of COVID-19 Pos. Inmate Deaths More information can be found on the DOC website: https://portal.ct.gov/DOC/Common-Elements/Common-Elements/Health-Information-and-Advisories Data will be updated every weekday. Additional notes: The data on 7/15 reflects a decrease in the number of inmates testing positive for COVID-19 and those who have recovered; this decrease was due to an internal data audit that led to the removal of some duplicate information. The data on 6/2/2020 reflects an increase in the number of inmates who had been medically cleared; this increase was the result of 146 asymptomatic positive inmates who had completed a 14-day isolation period.

  19. Lung CT COVID-19 batch 2

    • zenodo.org
    zip
    Updated Jun 15, 2023
    + more versions
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    Natalia Alves; Natalia Alves; Luuk Boulogne; Luuk Boulogne (2023). Lung CT COVID-19 batch 2 [Dataset]. http://doi.org/10.5281/zenodo.8042589
    Explore at:
    zipAvailable download formats
    Dataset updated
    Jun 15, 2023
    Dataset provided by
    Zenodohttp://zenodo.org/
    Authors
    Natalia Alves; Natalia Alves; Luuk Boulogne; Luuk Boulogne
    License

    Attribution-NonCommercial 4.0 (CC BY-NC 4.0)https://creativecommons.org/licenses/by-nc/4.0/
    License information was derived automatically

    Description

    This data set is part of the public development data for the 2023 Automated Universal Classification Challenge (AUC23). The data set concerns COVID-19 RT-PCR outcome prediction and prediction of severe COVID-19, defined as death or intubation after one month, from computed tomography (CT). The data set was previously introduced and described by Revel, M. et al (2021). Data was restructured in compliance with the AUC23 challenge format. The STOIC project collected CT images of 10,735 individuals suspected of being infected with SARS-COV-2 during the first wave of the pandemic in France, from March to April 2020. For each patient in the training set, the dataset contains binary labels for COVID-19 presence based on RT-PCR test results, and COVID-19 severity, defined as intubation or death within one month from the acquisition of the CT scan. This data set contains the training sample of the STOIC dataset as used in the STOIC2021 challenge.

    Images are 3D tensors:

    • 0: 3D CT scan

    Classification labels:

    • COVID-19:
      • 0: Negative RT-PCR
      • 1: Positive RT-PCR
    • Severe COVID-19:
      • 0: Alive and no intubation after one month
      • 1: Death or intubation after one month

    imagesTr (root folder with all patients and studies)
    โ”œโ”€โ”€ covid19severity_6_0000.mha (3D CT for study 6)
    โ”œโ”€โ”€ covid19severity_17_0000.mha (3D CT for study 17)
    โ”œโ”€โ”€ ...

    Please cite the following article if you are using the STOIC2021 training dataset:

    STOIC2021 Training was accessed on DATE from https://registry.opendata.aws/stoic2021-training. STOIC2021 Training was documented in Thoracic CT in COVID-19: The STOIC Project, Revel, Marie-Pierre, et al. Radiology, 2021, https://doi.org/10.1148/radiol.2021210384.

    Due to upload size limits, the data set was split into six batches.

    Batch 1: https://zenodo.org/record/7969800

    Batch 3: https://zenodo.org/record/8042817

    Batch 4: https://zenodo.org/record/8043089

    Batch 5: https://zenodo.org/record/8043216

    Batch 6: https://zenodo.org/record/8043218

  20. COVID-19 State Profile Report - Connecticut - fkqu-6qqx - Archive Repository...

    • healthdata.gov
    application/rdfxml +5
    Updated Jul 3, 2025
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    (2025). COVID-19 State Profile Report - Connecticut - fkqu-6qqx - Archive Repository [Dataset]. https://healthdata.gov/dataset/COVID-19-State-Profile-Report-Connecticut-fkqu-6qq/e3xs-enpa
    Explore at:
    application/rdfxml, csv, xml, application/rssxml, tsv, jsonAvailable download formats
    Dataset updated
    Jul 3, 2025
    Area covered
    Connecticut
    Description

    This dataset tracks the updates made on the dataset "COVID-19 State Profile Report - Connecticut" as a repository for previous versions of the data and metadata.

Share
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Department of Public Health (2022). COVID-19 Cases, Hospitalizations, and Deaths (By County) - ARCHIVE [Dataset]. https://data.ct.gov/w/bfnu-rgqt/wqz6-rhce?cur=XEeQ-ykerEb

COVID-19 Cases, Hospitalizations, and Deaths (By County) - ARCHIVE

Explore at:
csv, application/rssxml, tsv, application/rdfxml, json, xmlAvailable download formats
Dataset updated
Jun 24, 2022
Dataset authored and provided by
Department of Public Health
License

U.S. Government Workshttps://www.usa.gov/government-works
License information was derived automatically

Description

Note: DPH is updating and streamlining the COVID-19 cases, deaths, and testing data. As of 6/27/2022, the data will be published in four tables instead of twelve.

The COVID-19 Cases, Deaths, and Tests by Day dataset contains cases and test data by date of sample submission. The death data are by date of death. This dataset is updated daily and contains information back to the beginning of the pandemic. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-Cases-Deaths-and-Tests-by-Day/g9vi-2ahj.

The COVID-19 State Metrics dataset contains over 93 columns of data. This dataset is updated daily and currently contains information starting June 21, 2022 to the present. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-State-Level-Data/qmgw-5kp6 .

The COVID-19 County Metrics dataset contains 25 columns of data. This dataset is updated daily and currently contains information starting June 16, 2022 to the present. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-County-Level-Data/ujiq-dy22 .

The COVID-19 Town Metrics dataset contains 16 columns of data. This dataset is updated daily and currently contains information starting June 16, 2022 to the present. The data can be found at https://data.ct.gov/Health-and-Human-Services/COVID-19-Town-Level-Data/icxw-cada . To protect confidentiality, if a town has fewer than 5 cases or positive NAAT tests over the past 7 days, those data will be suppressed.

COVID-19 cases, hospitalizations, and associated deaths that have been reported among Connecticut residents. All data in this report are preliminary; data for previous dates will be updated as new reports are received and data errors are corrected. Hospitalization data were collected by the Connecticut Hospital Association and reflect the number of patients currently hospitalized with laboratory-confirmed COVID-19. Deaths reported to the either the Office of the Chief Medical Examiner (OCME) or Department of Public Health (DPH) are included in the daily COVID-19 update.

Data on Connecticut deaths were obtained from the Connecticut Deaths Registry maintained by the DPH Office of Vital Records. Cause of death was determined by a death certifier (e.g., physician, APRN, medical examiner) using their best clinical judgment. Additionally, all COVID-19 deaths, including suspected or related, are required to be reported to OCME. On April 4, 2020, CT DPH and OCME released a joint memo to providers and facilities within Connecticut providing guidelines for certifying deaths due to COVID-19 that were consistent with the CDCโ€™s guidelines and a reminder of the required reporting to OCME.25,26 As of July 1, 2021, OCME had reviewed every case reported and performed additional investigation on about one-third of reported deaths to better ascertain if COVID-19 did or did not cause or contribute to the death. Some of these investigations resulted in the OCME performing postmortem swabs for PCR testing on individuals whose deaths were suspected to be due to COVID-19, but antemortem diagnosis was unable to be made.31 The OCME issued or re-issued about 10% of COVID-19 death certificates and, when appropriate, removed COVID-19 from the death certificate. For standardization and tabulation of mortality statistics, written cause of death statements made by the certifiers on death certificates are sent to the National Center for Health Statistics (NCHS) at the CDC which assigns cause of death codes according to the International Causes of Disease 10th Revision (ICD-10) classification system.25,26 COVID-19 deaths in this report are defined as those for which the death certificate has an ICD-10 code of U07.1 as either a primary (underlying) or a contributing cause of death. More information on COVID-19 mortality can be found at the following link: https://portal.ct.gov/DPH/Health-Information-Systems--Reporting/Mortality/Mortality-Statistics

Data are reported daily, with timestamps indicated in the daily briefings posted at: portal.ct.gov/coronavirus. Data are subject to future revision as reporting changes.

Starting in July 2020, this dataset will be updated every weekday.

Additional notes: A delay in the data pull schedule occurred on 06/23/2020. Data from 06/22/2020 was processed on 06/23/2020 at 3:30 PM. The normal data cycle resumed with the data for 06/23/2020.

A network outage on 05/19/2020 resulted in a change in the data pull schedule. Data from 5/19/2020 was processed on 05/20/2020 at 12:00 PM. Data from 5/20/2020 was processed on 5/20/2020 8:30 PM. The normal data cycle resumed on 05/20/2020 with the 8:30 PM data pull. As a result of the network outage, the timestamp on the datasets on the Open Data Portal differ from the timestamp in DPH's daily PDF reports.

Starting 5/10/2021, the date field will represent the date this data was updated on data.ct.gov. Previously the date the data was pulled by DPH was listed, which typically coincided with the date before the data was published on data.ct.gov. This change was made to standardize the COVID-19 data sets on data.ct.gov.

On 5/16/2022, 8,622 historical cases were included in the data. The date range for these cases were from August 2021 โ€“ April 2022.โ€

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