Figure 1: Dissemination of Francisella to other organs. A. Probability of dissemination versus the number of extracellular bacteria in the lung (400 initial macrophages). B. Probability of dissemination versus the number of extracellular bacteria in the liver (400 initial macrophages). C. Probability of dissemination versus the number of extracellular bacteria in the liver (40 and 400 initial macrophages); chemoattractants increased to 5000.