CXCL10 and Flavivirus Infections: In order to investigate the response of the respiratory epithelium upon flavivirus infection, we measured the expression levels of type I and type III IFNs (Figures 3A–C) and the pro-inflammatory cytokines IL-6, IL-8/CXCL8, and IP-10/CXCL10 (Figures 3D–F).