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Viral titer in ferret tissues. (A) Mean viral titer in ferret nasal turbinates on day 4 as determined by plaque assay. Data was collected from 2 ferrets in each group, and assays were performed in triplicate. Error bars represent 95% confidence intervals. (B) Mean viral titer in ferret lungs on day 4 as determined by plaque assay. Data was collected from 2 ferrets in each group, and plaque assays were performed in triplicate. Error bars represent 95% confidence intervals..
