<qa>  What is a second, crossed condition?As a program, this project has disseminated notification activities to community health centers that see chlamydial infections, all under the aegis of the awardee Boston Medical Center. Diagnosis and partner notification can be recorded remotely , but centrally accessed through a secure database. To enhance patient referral effectiveness, this project tests brief instructions to refer standard of care against a kit containing a specific notification of exposure to chlamydia, an accurate health message about the nature and prognosis of the infection treated and untreated, options for seeking free or low-cost evaluation and treatment, and a satisfaction survey. A second, crossed condition is pure patient referral against a contract 72 hours to notify, after which study staff will refer cases to public health professionals for notification. 