To test this hypothesis, 10 days after the first treatment with rNDV, retro-orbital blood samples were taken (Figure 8A) and T cell function was assessed by measuring production of IFN-γ and TNF-α by flow cytometry after re-stimulation with CT26LacZ tumor cell lysates as described previously (van Vloten et al., 2019). The gene discussed is IFNG; the disease is neoplasm.