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HIV Epidemiology


HIV Epidemiology

Contact Information
Los Angeles County
Department of Public Health
HIV Epidemiology, DHSP                       600 S. Commonwealth Ave. Suite 1920
Los Angeles, CA 90005
Phone: (213) 351-8196
Fax: (213) 487-9386


        LAC's ZIP code level data/maps on HIV

HIV Epidemiology - HIV Is Reportable by Name

By State regulation, HIV infection has become a reportable condition in California. This requires laboratories, health care providers, and counseling and testing providers to report all cases of HIV infection to their local health department. This reporting requirement is necessary both to better monitor the epidemic and because future funding for local AIDS treatment and HIV prevention services will soon be allocated according to the number of HIV cases reported.

This HIV surveillance activity begins on July 1, 2002 using a non-name code. On April 17, 2006, Governor Arnold Schwarzenegger signed into law Senate Bill 699 (Soto), which requires health care providers and laboratories to report cases of HIV infection by name to local health departments. The new law requirements took effect immediately on April 17, 2006. Starting from September 26, 2008, all CD4 + T-Cell test results has also become reportable by the recent passage of California Senate Bill 1184.  The summary of the bill is as follows:

“(SB1184) Requires a physician providing insemination or advanced reproductive technologies to verify and document the sperm donor who tests reactive to HIV or HTLV-1 is under the care of a physician managing the risk of the transmission during insemination. Requires each clinical laboratory to report all CD4 + T-Cell test results to the local health officer upon the completion of the test. Requires the health officer to make a specified report, if the test result is related to a case of HIV infection or AIDS.”

Laboratories must now report all CD4 + T-Cell test results to their local health department within 7 days, in addition to the existing requirements to report any laboratory test used to identify HIV or antibodies or antigens to HIV.

This change to reporting will allow us to monitor the HIV and AIDS epidemic in a timely, complete, and accurate manner and ensure that Los Angeles County receives future federal funding for local HIV treatment and prevention services.

Laboratories are responsible for reporting ALL CD4 T-Cell test results (not just those < 200/ul or < 14%), as well as any HIV-indicative test – including all viral loads (even if undetectable) and confirmed antibody tests – to the Health Officer of the local health jurisdiction where the health care provider facility is located. The Health Officer’s designee – HIV Epidemiology Program – will follow-up with health care providers for laboratory reports you send to us to complete the HIV/AIDS registry.

Effective January 1, 2010, Assembly Bill 1045 (Perez, Chapter 501, Statutes of 2009) allows that clinical laboratories demonstrating that a CD4+T-cell test is not related to a diagnosed case of HIV are not mandated to report that CD4+ T-cell test result to the local health officer.

Health care providers are responsible for providing the client's full name, date of birth, and gender when submitting laboratory requisitions for any test used to identify HIV, a component of HIV, or antibodies or antigens to HIV.

The following documents can be downloaded for HIV reporting. If you would like to report an HIV case or have any questions retrieving these files, please contact the HIV Reporting Help Desk at (213) 351-8516.


   For HIV/AIDS Case Reporting

   For Laboratory Test Reporting Posters HIV Report Training Materials Contact Numbers
  • Los Angeles County Department of Health Services HIV Epidemiology Program-HIV/AIDS Reporting Help Desk: (213) 351-8516.
  • City of Long Beach Department of Health & Human Services: (562) 570-4311
  • City of Pasadena Public Health Department: (626) 744-6027
  • California State Office of AIDS: (916) 445-0553

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