IFNG and infection: As shown in Table 2, on day 5 after infection, TBBPA exposure significantly increased IFN-γ level in the BALF of RSV-infected mice as compared with the control (P < 0.05 versus control by Student's t-test), but its combination with AF-08 was significantly effective in blocking the increase prophylactically (P < 0.05 versus TBBPA by Student's t-test).