Patients were first tested for HIV infection with a rapid saliva test. If the results of this test were positive for HIV, a counselor gave patients their test results and a blood sample was obtained for standard HIV tests. If the results were negative, a blood sample was obtained for the nucleic acid test. Patients who took the nucleic acid test were told that if the results were positive, they would be contacted by a staff member within 2 weeks and that if they had not been contacted in 2 weeks, they could call a voicemail number or log in to a Web site to retrieve their results, using an anonymous personal identification number to protect their privacy.