Fig. 6
Chemotherapeutic intervention against human taeniasis (blue-solid); pig cysticercosis (black-dotted); human cysticercosis (red-dashed). a Mean worm intensities (b) Age-susceptibles (c) Age-prevalence (d) Phase spaces of the dynamics: M3 versus M2 (red-dashed), M3 versus M1 (blue-dotted), and M2 versus M1 (black-solid). 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; H3 = 0.001; 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; G1 = 0.9; C1 = 0.9; N1(0) = 1000; N2(0) = 1000. The value of Ro is 5.49