As well, the nos mutant-infected mice displayed significantly (p<0.05, Log Rank and Chi Squared Test with 1-degree of freedom) less mortality than the wild-type infected mice in this model of infection, with 8/9 nos mutant-infected mice and 6/9 wild-type-infected mice surviving throughout the 7-day infection (Fig. 8E). The gene discussed is NOS2; the disease is infection.