NHSNLink leverages the FHIR API to streamline public health data reporting and create a pathway to automate public-health data reports, which minimizes long product cycles​ and provides access to crucial line-level healthcare data​. NHSN uses NHSNLink, an open-source HL7 FHIR reference application (Figure 1) hosted at CDC that connects securely to a healthcare facility’s EHR system via the facility’s FHIR API. NHSNLink extracts data, evaluates the data using pre-defined measures, generates measure- and line-level reports, and imports data directly into the NHSN FHIR gateway. Figure 1: NHSNLink Data and Security Architecture Overview