Notes from the Field: Seroprevalence of Highly Pathogenic Avian Influenza A(H5) Virus Infections Among Bovine Veterinary Practitioners - United States, September 2024

Published on February 13, 2025

This report describes evidence of recent highly pathogenic avian influenza infection among three veterinary practitioners.

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Notes from the Field: Emergency Department Use During the Los Angeles County Wildfires, January 2025

February 6, 2025
This report describes wildfire-associated emergency department encounters immediately after the 2025 Los Angeles County wildfires.

Notes from the Field: Genomic and Wastewater Surveillance Data to Guide a Hepatitis A Outbreak Response - Los Angeles County, March 2024-June 2024

February 20, 2025
This report describes significant increase in hepatitis A virus (HAV) wastewater concentrations during an HAV outbreak in Los Angeles County, California.