CD4 and infection: The earliest available samples from the rest of 20 participants (Fiebig V/VI) were obtained at a median of 34 days (IQR, 30.00–40.75) post infection with the median square root CD4 T cell count of 21.30 (IQR, 19.55–25.83) or median CD4 T cell count of 453.70 (IQR, 283.39–616.37) (S1 Table) and viral load of log10 5.10 copies/mL (IQR, 3.90–5.78).