HIV Primary Infection Clinic

About us

PIC (Primary Infection Clinic) Study

This is a natural history (observational) study which looks closely at the effects of HIV infection on the immune system in newly infected participants and then follows them over time.

Currently we are focusing our efforts on those who are most recently infected, typically people who are within 30 days of the onset of symptoms of acute HIV infection . If you think you might be eligible and are interested in getting more information, or have questions about acute infection, call us at (206) 667-5743 or email us at

Study Procedures
Patients come for study visits every week for the first month, once a month for the 2nd, 3rd, and 4th month, then approximately every other month for the rest of the first year. After the first year, study participants are seen twice a year.

At each visit, blood work (including viral load and CD4+ cell counts) is done, and medications and physical symptoms are recorded. Participants may also choose to participate in one or more of several optional procedures, some of which provide monetary compensation.