Effect of PMG (Phagocytosis, Migration, Germination) period length on survival (without drug intervention) with respect to initial spore count. Differing values of k3 were computed from model simulations so that the PMG period was approximately 4, 30, 60, or 90 days, depending on the initial spore counts shown. For instance, the values of k3 that were used for an initial spore count of 9000 were 0.06, 0.008, 0.004, and 0.0026, corresponding to a 4, 30, 60, and 90 day PMG period, respectively. Generally, survival increases as the PMG period increases; however for very high initial spore counts, death occurs even with a PMG period of 90, as seen in the last column.