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Schema.org COVID-19: US CDC Data Table fields

Editor:
Dan Brickley <danbri@google.com>
Last Updated:
2020-04-02

This document specifies a Schema.org representation of the following US CDC (Centers for Disease Control and Prevention) data format definition:

The representation defined here is intended to be 1:1 with the original representation and round-trippable. The CDC document defines several data fields in a tabular format. These are represented in Schema.org as properties of an object of type CDCPMDRecord.

For all formal matters of interpretation for the properties listed in the table below, please refer to the source CDC documentation for authoritative definitions and official updates. This document (and accompanying schemas) may be updated in the future to track changes from CDC, but we cannot guarantee to do this immediately. Implementors are cautioned to check the CDC site for updates and clarifications. We expect that some aspects of the CDC definitions may change.

The purpose of this schema definition is to provide a standards-based representation that can be used to encode and exchange records that correspond to the CDC format. Depending on context, any of the formats and standards that work with Schema.org may be applicable, including the Microdata, RDFa and JSON-LD data formats, as well as related technologies such as W3C SPARQL for data query. JSON-LD is in most cases likely to be the most appropriate format. There is no assumption that data encoded using this schema should necessarily be published on the public Web, nor that it would be used by search engines.

Schema.org vocabulary:

The following additions were made to Schema.org (in the Pending area, pending review and implementation feedback):

New properties: this adds several new properties (see "Schema.org name" column). Most are Number (with additional application-level constraints summarized in "Notes" column).

The reason for prefixing each name with cvd is to avoid clashing with similar or identical names already in use at Schema.org. For example, https://schema.org/numberOfBeds already exists for describing hotel rooms, apartments etc.; for the COVID-19 case it is simplest to keep things relatively self-contained.


CDC name Schema.org name Expected Value Notes

(see CDC for authoritative guidance)		 Definition
collectiondate cvdCollectionDate Text, mm/dd/yyyy

[or ISO 8601 DateTime]		 CDC required.

Original date format for collectiondate was mm/dd/yyyy, which can be ambiguous outside of a US context, so we provide the option of using ISO-8601 dates instead		 Date for which patient counts are reported.
numbeds cvdNumBeds Number CDC required.

0 to 10000

Must be a whole number

Must be <= numTotBeds 		HOSPITAL INPATIENT BEDS: Inpatient beds, including all staffed, licensed, and overflow (surge) beds used for inpatients.
numtotbeds cvdNumTotBeds Number Must be a whole number

0 to 10000		 ALL HOSPITAL BEDS: Total number of all Inpatient and outpatient beds, including all staffed,ICU, licensed, and overflow (surge) beds used for inpatients or outpatients.
numbedsocc cvdNumBedsOcc Number 0 to 10000

Must be a whole number

Must be <= numBeds 		HOSPITAL INPATIENT BED OCCUPANCY: Total number of staffed inpatient beds that are occupied.
numicubeds cvdNumICUBeds Number 0 to 10000

Must be a whole number

Must be <= numBeds 		ICU BEDS: Total number of staffed inpatient intensive care unit (ICU) beds.
numicubedsocc cvdNumICUBedsOcc Number 0 to 10000

Must be a whole number

Must be <= numICUBeds 		ICU BED OCCUPANCY: Total number of staffed inpatient ICU beds that are occupied.
numvent cvdNumVent Number 0 to 10000

Must be a whole number

Must be <= numTotBeds or <= 10,000 		MECHANICAL VENTILATORS: Total number of ventilators available.
numventuse cvdNumVentUse Number 0 to 10000

Must be a whole number

Must be <= numVent or <= 10,000 		MECHANICAL VENTILATORS IN USE: Total number of ventilators in use.
numc19hosppats cvdNumC19HospPats Number 0 to 10000

Must be a whole number

Must be <= numBedsOcc 		HOSPITALIZED: Patients currently hospitalized in an inpatient care location who have suspected or confirmed COVID-19.
numc19mechventpats cvdNumC19MechVentPats Number 0 to 10000

Must be a whole number

Must be <= numVentUse		 HOSPITALIZED and VENTILATED: Patients hospitalized in an NHSN inpatient care location who have suspected or confirmed COVID-19 and are on a mechanical ventilator.
numc19hopats cvdNumC19HOPats Number 0 to 10000

Must be a whole number

Must be <= numBedsOcc 		HOSPITAL ONSET: Patients hospitalized in an NHSN inpatient care location with onset of suspected or confirmed COVID-19 14 or more days after hospitalization.
numc19overflowpats cvdNumC19OverflowPats Number 0 to 2000

Must be a whole number

Must be <=2000		 ED/OVERFLOW: Patients with suspected or confirmed COVID-19 who are in the ED or any overflow location awaiting an inpatient bed.
numc19ofmechventpats cvdNumC19OFMechVentPats Number 0 to 10000

Must be a whole number

Must be <= numVentUse 		ED/OVERFLOW and VENTILATED: Patients with suspected or confirmed COVID-19 who are in the ED or any overflow location awaiting an inpatient bed and on a mechanical ventilator.
numc19died cvdNumC19Died Number 0 to 1500

Must be a whole number

Must be <= 1500		 DEATHS: Patients with suspected or confirmed COVID-19 who died in the hospital, ED, or any overflow location.

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