Fig. 4
Computer simulated curves of the age-mean intensity of: a human taeniasis (blue-solid), pig cysticercosis (black-dotted), and human cysticercosis (red-dashed) based upon Eqs. (4a), (4b), and (4c), respectively; b Phase spaces of the dynamics of: M2 versus M3 (solid), M1 versus M3 (dotted), and M1 versus M2 (dash-dotted). The values of the parameters are: β1 = 0.32; β2 = 0.44; β3 = 0.05; D1 = 0.96; D2 = 0.79; D3 = 0.96; H1 = 0.001; H2 = 0.6; b1 = 0.016; b2 = 0.9; α1 = 0.001; α2 = 0.38; α3 = 0.08; μ1 = 1; μ2 = 50; μ3 = 1; μ4 = 0.33; k1 = 0.02; k2 = 0.3; λ = 1 × 107; N1(0) = 1000; N2(0) = 1000. The value of Ro is 5.49