IFNG and infection: Cells isolated from the mediastinal lymph node had reduced proliferative capacity and had reduced production of IL-5, IL-13, IL-4, IL-6 and IL-10 relative to control mice, whereas IFN-γ production from these cells remained unchanged compared with the control, suggesting that the Th2 response, but not Th1 responses, was specifically affected by the infection with the virus (18).