IL1B and infection: Some mice in this study were also found to have a biphasic wave of IL-17 production, with one peak at 3 h and the second at 72 h post-infection, with Vγ4+ γδ T cells at 72 h being primed for later infection and IL-1β independent IL-17 production [18], suggesting a memory function for γδ T cells during acute peritonitis as well.