hCAP-18 is mostly expressed by neutrophils, monocytes, mast and dendritic cells (Agerberth et al. 2000; Vandamme et al. 2012), although its expression can also be induced during infection in epithelial cells and human keratinocytes (Bals et al. 1998; Frohm et al. 1997). The gene discussed is CAMP; the disease is infection.