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CD4:CD8 ratios in placebo- and FZD-treated cats during chronic FIV infection. No statistical differences in CD4:CD8 ratios were observed between Fozivudine (FZD)-treated cats and placebo-treated cats at two or three years PI. The mean CD4 to CD8 ratio is displayed as a line for each group evaluated. Five cats were evaluated for each experimental group at two years PI. Three placebo-treated and four FZD-treated cats were analyzed at three years PI. (p < 0.05, NS = not significant).
