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Volume 39 Number 3 Volume 39 Number 4 Volume 39 Number 5

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Research articles

ScienceAsia 39(2013): 410-415 |doi: 10.2306/scienceasia1513-1874.2013.39.410

Contact infection spread in an SEIR model: An analytical approach

Puntani Pongsumpuna,*, Rujira Kongnuya, Diana García Lópezb, I-Ming Tangc, Marc A. Duboisb

ABSTRACT:     The epidemic spread of an SEIR (susceptible-exposed-infectious-recovered) model is analysed via a contact infection process. We solve the system of nonlinear partial differential equations by using the method of separation of variables. Approximate analytical expressions for the propagating infection wave for various ranges of parameters are presented.

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a Department of Mathematics, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520 Thailand
b SPEC-CEA Saclay/CNRS URA 2464, Orme des Merisiers, 91191 Gif-sur-Yvette Cedex, France
c Department of Physics, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok 10400 Thailand

* Corresponding author, E-mail: kppuntan@kmitl.ac.th

Received 22 Sep 2012, Accepted 6 Jun 2013