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    • Active Bacterial Core surveillance (ABCs) Streptococcus pneumoniae

    Metadata Updated: August 30, 2025

    ABCs is an ongoing surveillance program that began in 1997. ABCs reports describe the ABCs case definition and the specific methodology used to calculate rates and estimated numbers in the United States for each bacterium by year. The methods, surveillance areas, and laboratory isolate collection areas have changed over time. Additionally, the way missing data are taken into account changed in 2010. It went from distributing unknown values based on known values of cases by site to use of multiple imputation using a sequential regression imputation method. Given these changes over time, trends should be interpreted with caution. Methodology Find details about surveillance population, case determination, surveillance evaluation, and more. Reports and Findings
    Get official interpretations from reports and publications created from ABCs data.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date June 25, 2021
    Metadata Updated Date August 30, 2025

    Metadata Source

    Harvested from Healthdata.gov

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 25, 2021
    Metadata Updated Date August 30, 2025
    Publisher Centers for Disease Control and Prevention
    Maintainer
    Identifier https://data.cdc.gov/api/views/en3s-hzsr
    Data First Published 2021-06-23
    Data Last Modified 2025-08-26
    Category Public Health Surveillance
    Public Access Level public
    Bureau Code 009:20
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://healthdata.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id a808e833-f6b6-46ac-8e24-ebad6298f410
    Harvest Source Id 651e43b2-321c-4e4c-b86a-835cfc342cb0
    Harvest Source Title Healthdata.gov
    Homepage URL https://data.cdc.gov/d/en3s-hzsr
    License http://opendefinition.org/licenses/odc-odbl/
    Program Code 009:020
    Source Datajson Identifier True
    Source Hash 68f6c079c118600782e0b67016a8db3ab227efbdd602446d4470a041d5338a25
    Source Schema Version 1.1

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