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IFN-α and IL-8 responses following H1N1 infection. (A and B) IFN-α protein levels were measured longitudinally in the nasal lavage fluid (A) and serum (B) by ELISAs and graphed on a log scale. (C and D) IL-8 protein levels at multiple time points postinfection in nasal lavage fluid (C) and serum (D) samples were determined by ELISAs. Graphs represent average values (±SEM) graphed on a log scale. *, P < 0.05 for infection status by two-way ANOVA for infection and time.
