IL5 and Increased total eosinophil count: Tissue eosinophilia during the allergic process is mainly coordinated by interleukin (IL)-5 and the CC chemokine CCL11/eotaxin both in experimental animals and human subjects (Beasley et al., 1989; Collins et al., 1995; Humbles et al., 1997; Robinson et al., 1999; Larangeira et al., 2001; Penido et al., 2001; Menzies-Gow et al., 2002, 2003; Kay and Klion, 2004; Phipps et al., 2004; Kay, 2005).