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Infant profile plots of CD4 cell counts and CD4 percentages by concurrent VL status. The dashed vertical line corresponds to the week 24 visit, after which only infants with HIV plasma viral load <200 copies/mL continue to be followed. Horizontal lines are shown at 1500 cells/mm3 and 25%. *Clopper-Pearson exact CI. Abbreviations: CI, confidence interval; HIV, human immunodeficiency virus; VL, viral load.
