Monday, April 6, 2020

COVID-19 schema for CDC hospital reporting

The COVID-19 pandemic requires various medical and government authorities to aggregate data about available resources from a wide range of medical facilities. Clearly standard schemas for this structured data can be very useful.

The Centers for Disease Control (CDC) in the U.S. defined a set of data fields to facilitate exchange of this data. We are introducing a representation of these data fields. 

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, with usage within the U.S. primarily in mind. While the existence of this schema may provide additional implementation options for those working with US hospital reporting data about COVID-19, please refer to the CDC and other appropriate bodies for authoritative guidance on the latest reporting workflows and data formats.

Depending upon context, any of the formats and standards that work with may be applicable for encoding this data, 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.

We will continue to improve this vocabulary in the light of feedback, and welcome suggestions for improvements and additions particularly from US healthcare organizations who are using it. This CDC-based vocabulary follows other recent changes we have made to For details of recent changes see our release notes and our previous post announcing the SpecialAnnouncement markup, which is now supported at both Bing (blog, docs) and Google (blog, docs). As the global response to COVID-19 evolves we will do our best to improve's vocabularies to represent the changes that Coronavirus is bringing to society, and to assist those using structured data to help with the response.