CDA STU Update publication of HL7 CDA® R2 Implementation Guide: NHSN Healthcare Associated Infection (HAI) Reports for Antimicrobial Use in Long Term Care Facilities (AULTC), Edition 1.1.0 – US Realm September 11, 2025 Lynn Laakso Public Health, STU Update, US Realm Learn more at https://www.hl7.org/implement/standards/product_brief.cfm?product_id=646