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An application of queuing theory to SIS and SEIS epidemic models

Carlos M. Hernández-Suárez Carlos Castillo-Chavez Osval Montesinos López Karla Hernández-Cuevas

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In this work we consider every individual of a population to be a server whose state can be either busy (infected) or idle (susceptible). This server approach allows to consider a general distribution for the duration of the infectious state, instead of being restricted to exponential distributions. In order to achieve this we first derive new approximations to quasistationary distribution (QSD) of SIS (Susceptible- Infected- Susceptible) and SEIS (Susceptible- Latent- Infected- Susceptible) stochastic epidemic models. We give an expression that relates the basic reproductive number, $R_0$ and the server utilization, $\rho$.

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Article URL   http://www.aimspress.com/MBE/article/2669.html
Article ID   1551-0018_2010_4_809
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