Due to ongoing repairs, only select departments are open at the Dallas County Records Building today. If you need in-person assistance, please call to confirm operational status before traveling to the building. We encourage you to visit our website for the latest information and daily operations.
In observance of Labor Day, Dallas County offices will be closed on Monday, September 7, 2026.
Dallas County is under a Burn Ban starting July 27, 2026, in effect for 90 days.
DALLAS COUNTY ADOPTED A TAX RATE THAT WILL RAISE MORE TAXES FOR MAINTENANCE AND OPERATIONS THAN LAST YEAR'S TAX RATE.

THE TAX RATE WILL EFFECTIVELY BE RAISED BY 22.02 PERCENT AND WILL RAISE TAXES FOR MAINTENANCE AND OPERATIONS ON A $100,000 HOME BY APPROXIMATELY $29.08.

Public Health Laboratory

Public Health Laboratory (PHL)

Dallas County Health and Human Services - 2377 N. Stemmons Freeway, Suite 017, Dallas, TX 75207
Telephone: (214) 819-1950
Email: PHLabInfo@dallascounty.org

Our Mission

Provide a comprehensive program of diagnostic and analytical laboratory services to support the prevention, surveillance, control, and diagnosis of communicable diseases and emerging biological threats.

Safety and Preparedness Unit
Ensuring laboratory safety, compliance, and emergency preparedness.

LRN-B Unit
Rapid detection and response to biological threats.

Immunology & Virology Unit (IVU)
Serological and molecular diagnostics for infectious diseases.

Chemistry Unit
Chemical analyses supporting public health, including opioid bio-surveillance.

Microbiology Unit
Infectious disease testing and antimicrobial resistance monitoring.

Laboratory Information Systems (LIS) Unit
Efficient management of laboratory data systems and interfaces.

Genome Sequencing Unit
Advanced genomic sequencing for outbreak investigation and surveillance.

Client Services Manual
Information related to the PHL, available laboratory testing, and specimen guidelines.

 

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