Figure 1. Flow chart of study population, McCord Hospital outpatient department Acute HIV screening study, Durban, South Africa, 2007.

The flow diagram shows the results of rapid HIV tests (1^st and 2^nd rows), qualitative HIV RNA results (3^rd row), and then quantitative HIV RNA and WB results (4^th row). The solid bolded boxes outline patients with acute HIV infection, the gray shading highlights those with chronic HIV infection, and the dashed boxes show HIV negative patients. WB, Western Blot.

*No WB or HIV RNA available for 1 patient