FIG 1.

Sequential viral RNA loads (log₁₀ copies/ml) of influenza H1N1 pdm09, H3N2, or B viruses after peramivir administration. The error bars represent the standard deviation of the mean. Although the influenza viral RNA loads of both H1N1 pdm09 and H3N2 on day 2 were significantly decreased compared with those on day 0 (H1N1 pdm09, P = 0.043; H3N2, P = 0.005), no statistical differences in the viral RNA loads were observed between day 0 and day 5 for H1N1 pdm09 (P = 0.068), H3N2 (P = 0.180), and B (P = 0.109) viruses. The Wilcoxon signed-rank test was used for data analysis.