First return maps of models for cases.

Maps were reconstructed for (A) Egypt cases model with κ = 1. (in black), κ = 1.25 (in magenta) and κ = 1.7 (in green); (B) Ethiopia cases model with κ = 0.91 (in green) and κ = 0.93 (in blue); (C) Ghana-1 cases model (Eqs. 33) with κ = 0.85 but using different initial conditions (magenta and green), and Ghana-2 model (Eqs. 41) (in orange); (D) Kenya cases model with κ₁ = κ₂ = 1. (in green), (κ₁, κ₂) = (1.08, 0.9901) (in red) and (κ₁, κ₂) = (1, 0.9882353) (in blue); (E) Namibia cases model with κ₁ = κ₂ = κ₃ = 1. (in black), (κ₁, κ₂, κ₃ = (1.06, 1., 1.) (in green) and (κ₁, κ₂, κ₃ = (1., 0.9, 1.12) (in red); and (F) South Africa cases model (black only). Corresponding equations and initial conditions are provided in S3 Appendix (Section 1).

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