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Test Directory
Submitting Specimens to CDC
The CDC Roybal Campus will be closed December 13–14 due to a major water main repair by DeKalb County. No water service or laboratory operations will be available. Specimens delivered during this period will be stored but not accessioned until Monday, December 15. Only critical or emergency specimens should be sent for weekend delivery. Please coordinate in advance with your CDC subject matter expert for required weekend handling. For questions, please contact CDC_ID_lab_info@cdc.gov.
Several test orders are currently unavailable. Please click “More Info” for the full list.
CDC’s Infectious Diseases Laboratories accepts specimens from state public health laboratories and other federal agencies for analysis. Specimens from private healthcare providers and institutions should be submitted to the local state health department laboratory (state, county, city) for appropriate processing. The searchable Test Directory features an up-to-date list of orderable tests and provides information on specimen requirements, contact information, test turnaround times, and other supplemental information. Access the directory here or while completing a Specimen Submission Form.
Effective October 27, 2025, an updated directory is available. View the Major Update Summary [PDF – 3 pages] here.
Specimens submitted for testing must be accompanied by CDC Form 50.34.