The California Lyme Disease Association (CLDA) is a voluntary, non-profit, education and communication center dedicated to supporting people affected by Lyme disease, the public, physicians, and any others interested in this disorder. Established in 1990, the Lyme Disease Resource Center educates the public about Lyme disease, its risks, and preventive measures. It provides a forum for physicians and other healthcare professionals to exchange ideas and information concerning symptoms, diagnosis, and treatments for Lyme disease. It also functions as a communication center for individuals and groups who assist people with Lyme disease. The center has a network of Lyme disease support groups, engages in patient advocacy, and provides referrals to medical professionals or support groups. It offers a variety of educational and support materials through its directory. It also offers audiovisual aids, brochures, a Spanish language brochure, and a regular newsletter.