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. 2010 Feb 10;6(4):505–508. doi: 10.1098/rsbl.2009.1019

Figure 1.

Figure 1.

(a) The relationship between evolutionarily stable virulence (α) and the relative virulence in the first infected class (ρ) for three levels of infection hazard (solid line, ψ = 0.1; dashed line, ψ = 0.2; dotted line, ψ = 0.4). Parameters are μ = 0.5, γ = 50, σ = 10 and ϕ = 1. (b) The relationship between evolutionarily stable virulence (α) and the relative transmission in the second class (ϕ) for three levels of ρ (solid line, ρ = 0.001; dashed line, ρ = 1; dotted line, ρ = 2). Here, ψ = 0.2.