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An epidemic model with a time delay in transmission. (English) Zbl 1099.92062

Summary: We study a mathematical model which was originally suggested by D.Greenhalgh and R.Das [see Theor. Popul. Biol. 47, No. 2, 129–179 (1995; Zbl 0833.92018)] and takes into account the delay in the recruitment of infected persons. The stability of the equilibria are also discussed. In addition, we show that the introduction of a time delay in the transmission term can destabilize the system and periodic solutions can arise by Hopf bifurcation.

MSC:

92D30 Epidemiology
34K20 Stability theory of functional-differential equations
34K13 Periodic solutions to functional-differential equations

Citations:

Zbl 0833.92018
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References:

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