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The BALF immune cell differential in IAV-infected mice is not influenced by CS treatment. C57BL/6 mice were left unexposed or were exposed to CS for 6 wk in a smoke exposure chamber and then intranasally infected with low-dose IAV PR8 or treated with PBS. BALFs were collected from mice 7 days after infection. Cells were stained with Diff-Quik and counted. Data are expressed as means ± SE (3 mice/group).
