IFNG and abortion: Interestingly, when the splenic cells of IFN-γ-induced abortion mice after erythrocyte lysis were transferred into syngeneically mated BALB/c on GD6, we also observed a 62.5% resorption rate 2 days posttransfer (Figure 1c), suggesting that IFN-γ-induced resorption was due to leucocytes.