Founded in 1985, the Infectious  Disease Association of California is a non-profit organization (Tax ID#95-4106813), serving the educational needs of medical professionals in California with  an interest in Clinical Infectious Diseases/HIV. IDAC is a regional society affiliated with the Infectious Diseases Society of America and the HIV Medical Association, as  well as a recognized specialty society  of the California Medical Association.

IDAC conducts three annual symposia, special topic symposia, and research addressing clinical and business issues pertaining to the practice of Infectious Diseases, as well as operates an Internet website, email network and a Speakers Bureau