The images of BALF cytospin were all at 400× magnification. Mac, macrophages; RBC, red blood cells; Eos, eosinophils; Lym, lymphocytes; Neu, neutrophils. The number of cells in image (A) control group and (D) CAM group relatively smaller than that in (B) OVA group and (C) SEA group. (A) and (D) showed typical macrophages (arrows), (B) had the typical eosinophils (arrows), while (C) had typical neutrophils and lymphocytes (arrows).