RENBP and HIV infectious disease: Table 1 describes the demographic and clinical characteristics of the samples tested by the assays. After reclassifying specimens with LAg-pending and BRAI-invalid results with confirmed HIV infection by WB or Ag testing (see methods) as recent infections, the recency rates were 43% (119/276; 95% confidence interval [CI] 37–49%) and 70% (192/276; 95% CI 64–75%) by LAg and BRAI, respectively.