WHO guidelines also recommend using urine lateral flow lipoarabinomannan (LF-LAM) to diagnose and screen for active TB among PLHIV as follows: among inpatients with signs and symptoms of TB, with AHD, or with CD4 cell count < 200 cells/μL; and among outpatients with signs and symptoms of TB or with CD4 cell count < 100 cells/μL [4, 32]. This evidence concerns the gene CD4 and tuberculosis.