Porcine myeloid antimicrobial peptide-23 (PMAP-23) is a host defense peptide that belongs to cathelicidins. It has potent activity against Gram-negative and Gram-positive bacteria1, and displays strong antifungal activity against yeast and mold2-3. It is not toxic to eukaryotic cells up to concentrations 100 times higher than those needed for bactericidal activity.