Tuberculosis Control Program

Contact Information
Los Angeles County
Department of Public Health
Tuberculosis Control Program
5555 Ferguson Drive,
Commerce, CA 90007
Phone: (213) 745-0800
*The phones may not be working properly, if are experiencing difficulties, call (213) 745-0811*
Fax: (213) 749-0926

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Laboratory Reporting
Laboratory Guidelines Public Health Laboratory
What must be reported? Microscopic, culture, immunologic, serologic, or other evidence suggestive of tuberculosis. This includes, but is not limited to:
  • All smears positive for AFB
  • A positive nucleic acid amplification test (NAAT) for M. TB
  • Identification of mycobacterial growth upon culture media or broth
  • Identification of mycobacterial growth as Mycobacterium (M.) tuberculosis complex, M. tuberculosis, M. bovis, M. africanum, M. canetti, M. microti
  • Histologic evidence consistent with tuberculosis
  • Drug susceptibility test results on cultures positive for M. tuberculosis complex
To whom should reports be submitted?
  • Results should be submitted to the local health officer in the jurisdiction where the health care provider who first submitted the specimen is located
  • Reference laboratories are responsible for notifying BOTH the laboratory that forwarded the specimen for isolate testing AND the local health officer in the jurisdiction where the health care provider who submitted the specimen is located
  • Submit one positive culture for TB to the local public health laboratory
When should these results be reported to TB Control? Within one working day from the time the health care provider or referring laboratory is notified of results
What information is required on the report?
  • Patientís name, identification number
  • Patientís age/date of birth, gender
  • Patientís address
  • Patientís telephone number (if known)
  • Providerís name, address, and telephone number
  • Date of specimen collection
  • Specimen accession number
  • Test performed and result
  • Date positive results were identified

The lab that first receives a specimen is responsible for obtaining the above information, and labs must forward this same information when transferring specimens between labs

How is TB Control notified?

Written notification is required within one working day regardless of method of reporting.

Laboratories may elect to use the Confidential Laboratory Report form to report to the TB Control Program.

Telephone, courier, mail, or fax reports for this county to:

Los Angeles County Tuberculosis Control Program
2615 S. Grand Avenue, Room 507
Los Angeles, CA 90007
Telephone: (213) 745-0800
Fax: (213) 749-0926

Upcoming Events

First Friday CME conference June 7th
Silicosis and NTCA Isolation Guidelines
9:00 am-11:30 am

Coalition To End TB in
Los Angeles County
Date TBD-2024

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Public Health has made reasonable efforts to provide accurate translation. However, no computerized translation is perfect and is not intended to replace traditional translation methods. If questions arise concerning the accuracy of the information, please refer to the English edition of the website, which is the official version.
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