In the Tox#20-31 group, four mice were inoculated with digestive fluid from the myocardial and skeletal muscles of case#21 (patas monkey); two IFN-γ−/− mice (M#511, M#586) died after showing signs of toxoplasmosis at 18–19 dpi and T. gondii tachyzoites were observed in the lungs (Figure 2). Here, IFNG is linked to toxoplasmosis.