Left: Human rhinovirus infection induces epithelial generation of products linked to several features of airway remodeling. (Courtesy of David Proud) Right: Schematic of the HRV capsid shell showing the four constituent proteins; VP1 (blue),VP2 (green) and VP3 (red). The lower figure is a cut-away view showing that VP4 (yellow) is on the inner surface where it associates with the viral genome. : (Courtesy of Jean-Yves Sgro)