Fig. 5

Immune cell infiltrations in lung sections at 6 days after challenge. (A) Macrophages (IBA1+ cells), (B) neutrophils (MPO+ cells), and (C) T lymphocytes (CD3+ cells) were quantified by immunohistochemistry. Individual data, medians (lines), and 75th/25th interquartiles (boxes) are represented. Results are expressed as positive cells/mm2 of tissue