Compartmental disease transmission models for smallpox

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2011, 2011(Special): 13-21. doi: 10.3934/proc.2011.2011.13

Compartmental disease transmission models for smallpox

Burcu Adivar ^1, and Ebru Selin Selen ^2,

1.	Izmir University of Economics, Department of Logistics Management, Balçova , Izmir 35330, Turkey
2.	Izmir University of Economics, Department of Mathematics, Balçova, Izmir 35330, Turkey

Received August 2010 Revised March 2011 Published September 2011

Abstract
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Mathematical models are importants tool to develop emergency response plans and mitigating strategies for an anticipated epidemic or pandemic attack. With the objective of minimizing total number of deaths, total number of infected people, and total health care costs, mitigation decisions may include early response, vaccination, hospitalization, quarantine or isolation. In this study, smallpox disease transmission is analyzed with a compartmental model consisting of the following disease stages: susceptible, exposed, infectious, quarantined and recovered. Considering natural birth and death rates in a population, two models are developed to study the control and intervention of smallpox under the assumption of imperfect quarantine. First model is an ordinary dierential equation (ODE) model assuming exponential distribution function and the latter is a general integral equation model with gamma distribution. Numerical results are provided and model results are compared to demonstrate the dierences in the reproduction numbers, which can be described as the threshold for stability of a disease-free equilibrium related to the peak and nal size of an epidemic.

Keywords: smallpox, epidemiology, gamma distribution.

Mathematics Subject Classification: Primary: 92B05; Secondary: 92D30.

Citation: Burcu Adivar, Ebru Selin Selen. Compartmental disease transmission models for smallpox. Conference Publications, 2011, 2011 (Special) : 13-21. doi: 10.3934/proc.2011.2011.13

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