The effect of verbascoside on IFN-γ production in vitro and in vivo (in C57BL/6 and Balb/c mice) following infection with mouse-adapted influenza virus (A/FM/1/47 H1N1, FM1) or the NJ strain of vesicular stomatitis virus (VSV) showed that verbascoside effectively stimulates IFN-γ secretion in T cells at transcriptional and translational levels. Here, IFNG is linked to infection.