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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Math Biosci. 2013 Dec 31;248:97–116. doi: 10.1016/j.mbs.2013.12.006

Table 3.4.

No interior equilibrium and the related global dynamics for the systems (2.7)(2.8) and (2.9)(2.10)

Cases The system (2.7)(2.8) The system (2.9)(2.10)
No interior equilibrium Case (1): R0h1; Case (2): 1ρβd<4(1θ)2; Case (3): 4(1θ)2<1ρβd<R0υ. Case (1): R0h1; Case (2): 1ρβθd<4(1θβ1ρ)2; Case (3): max{1ρd,R0h,1ρβ+ρ1}>1/θ,R0υ>4(1θ)2,θ2<Ni*<K2, i = 1, 2; Case (4): R0h<1/θ,R0υ>4(1θ)2, θ2 < N2 < K2
Disease-free dynamics
R0h1
R0h1
Susceptible-free dynamics min{R0h,(1θ)24d}>1ρ. R0υ>max{1βK2,4(1θ)2} and Conditions of Case (2) or Case (3) or Case (4)
Disease-driven extinction
4(1θ)2>max{1ρβd,R0υ}
R0υ>4(1θ)2 and 1ρβθd<4(1θβ1ρ)2.
Permanence N(0) ∈ (θ2, K2) and R0h<1ρ<min{R0hρ,(1θ)24d}. N(0) ∈ (θ2, K2) and R0h<1ρK2<min{R0hρK2,(1θ)24dK2}.