However, the cell viability was drastically reduced from the 12 h.p.i. in the case of the H2O2-treated control cells, while the effect of Wt1-5 (MOI of 6) infection on cell viability slightly approached that of H2O2 treatment only after 24 h.p.i. In both cases, cell viability was nearly reduced from 20% to 0% between 24 and 48 h.p.i. (Figure 2A). The gene discussed is WT1; the disease is infection.