The OV-αCD47-G1- and OV-αCD47-G4-infected U251T2 GBM cells released appreciable and similar amounts of anti-CD47 antibody as early as 12 h post infection (hpi), and the yields reached near-maximum levels over 5 μg/ml at 24 hpi and peak levels over 6 μg/ml in culture at 48 hpi (Fig. 1f). The gene discussed is CD47; the disease is infection.