Azithromycin treatment attenuated chronic viral-dependent airway inflammation. Mice were inoculated with SeV and treated as in Figure 1. Twenty-one days post-inoculation, lung sections and BAL fluid were harvested. Values are the mean ± SEM (n = 10, Azithro; n = 8, PBS) of total BAL cells (A), macrophages, lymphocytes and neutrophils in the BAL (B), and concentrations of the chemokines: G-CSF (C) and CCL1/KC (D). A significant decrease between PBS and azithromycin treated mice is indicated (*, p < 0.05).