CD4 and HIV infectious disease: According to the Fiebig stage, 78 (57.8%) of these 135 individuals had acute HIV infection (Fiebig stages I to V) with a median age of 38 years (IQR: 29–45 years), a median VL of 706,953 copies/mL (IQR: 84,282–330,9125 copies/mL) and a median CD4+ cell count of 300 cells/mm3 (IQR: 64–360 cells/mm3).