Fig. 5From: Changes in RNA secondary structure affect NS1 protein expression during early stage influenza virus infectionNS1 expression in cells infected by assembled viruses featuring different NS RNA structures. MDCK (a) or A549 (b)cell cultures were infected with virus at moi = 10 TCID50/cell. Infected cells were fixed at the indicated time points, and NS1 protein levels were analyzed by ELISA. Error bars represent mean ± SD. Differences were analyzed by two-way ANOVA with Tukey’s multiple comparisons test (**p < 0.001, ****p < 0.00001)Back to article page