There were no differences in the levels of growth of wild-type and GRA15-KO T. gondii in various IFN-γ-prestimulated or IFN-γ-poststimulated human cell lines, including the THP-1 acute monocytic leukemia cell line and Huh7 hepatoma cell line (Fig. 1A and data not shown) (see also Fig. S1D). The gene discussed is IFNG; the disease is acute monocytic leukemia.