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IL-6 and IL-8 secretion into culture medium after rhinovirus infection. Infected tissue shows significantly increased secretion of IL-6 (A) and IL-8 (B) at 24 h after infection, when compared with control mucosa cultured for 24 h without exposure to rhinovirus. Each bar represents the means ± standard error of five samples. (*p < 0.05, Wilcoxon signed rank test.)
