For the equations (II) in Problem 8, suppose S₀ = 100. Does the disease spread initially? What if S₀ = 200?

Data from in problem 8

Compare the diseases modeled by each of the follow- ing differential equations with the flu model in this sec- tion. Match each set of differential equations with one of the following statements. Write a system of differen- tial equations corresponding to each of the unmatched statements. (1) (III) ds | | [ dt dI dt ds dt dI dt = -0.04SI : 0.04.SI -0.21 = -0.03.SI = 0.03.SI (II) ds dt dI dt = -0.002.SI = 0.002.SI - 0.31