The Gram-negative Vibrionaceae family of gamma-proteobacteria include many mammalian pathogens, and the role of Fur and iron homeostasis in infection has received much attention due to its potential as a drug target (Jones and Oliver 2009; León-Sicairos et al. 2015; Mey et al. 2005; Wright et al. 1981). This evidence concerns the gene FURIN and infection.